| Patent Number |
Title Of Patent |
Date Issued |
| 5753777 |
Telechelics containing ethanolamine or oligoether-ol-amine end groups and process for the prepar |
May 19, 1998 |
| A polydiene which is obtainable by anionic polymerization of a diene using a bifunctional Li initiator followed by polymer-like reaction and which contains at least one ethanolamine or oligoetherolamine terminal group of the general structure I ##STR1## in which R.sup.1 denotes a |
| 5625008 |
Preparation of telechelic structures |
April 29, 1997 |
| Telecheles are prepared by reacting, preferably, polyfunctional, living polymers obtained by anionic polymerization with a functionalizing agent by a process in which the reaction is carried out while stirring with a stirrer having knife-like blades as stirring elements, the latter being |
| 5614595 |
Polymers based on conjugated dienes |
March 25, 1997 |
| Polymers Ia and Ib carrying functional groups and obtainable byA) 1. hydrogenation of the olefinic double bonds of a polymer IIa comprisinga) from 20 to 100% by weight of a conjugated diene,b) from 0 to 80% by weight of an aromatic vinyl compound, andc) from 0 to 20% by weight of further comonom |
| 5494976 |
Polymers based on conjugated dienes |
February 27, 1996 |
| Polymers Ia and Ib carrying functional groups and obtainable byA)1. hydrogenation of the olefinic double bonds of a polymer IIa comprisinga) from 20 to 100% by weight of a conjugated diene,b) from 0 to 80% by weight of an aromatic vinyl compound, andc) from 0 to 20% by weight of further comonomers,t |
| 5332791 |
Polyisobutylene hydrocarbon or polymer containing a double bond allylic to an end amino group |
July 26, 1994 |
| Hydrocarbons and polymers thereof, of the structure (I)where R is a hydrocarbon radical, are prepared by reacting corresponding starting materials which contain chlorine bonded to tertiary carbon, of the structurewith from 1 to 10 moles of butadiene in the presence of a Friedel-Crafts ca |
| 5321093 |
Living polymers, the preparation thereof and the use thereof for preparing telechelic polymers |
June 14, 1994 |
| A process for preparing bifunctional living polymers which are able to forth bifunctional telechelic polymers or block copolymers with at least 3 blocks of conjugated dienes and/or vinylaromatics with molecular weights of from 1,500 to 500,000, by bifunctional initiators whose anionic ce |
| 5290874 |
Alkadiene/vinylaromatic copolymers containing side groups, and their use |
March 1, 1994 |
| The novel alkadiene/vinyl-aromatic copolymers which contain side groups and have a random, block-like or star-like structure and whose polymerized alkadiene comonomer units are partially or completely selectively hydrogenated, and which contain one or more side groups having one or more |
| 5266647 |
Branched copolymers |
November 30, 1993 |
| A copolymer with stellate branching, of the general formula [A-].sub.k X, where A is the monovalent radical of a homopolymer, block copolymer or random copolymer of a conjugated diene and/or vinyl-aromatic hydrocarbon, k is a number from 1 to 10, and X is the k-valent radical of a coupli |
| 5212248 |
Preparation of hydrocarbons and polymers with allylic chloride end groups Friedel-Crafts catalys |
May 18, 1993 |
| Hydrocarbons and polymers thereof, of the structure (I)where R is a hydrocarbon radical, are prepared by reacting corresponding starting materials which contain chlorine bonded to tertiary carbon, of the structurewith from 1 to 10 moles of butadiene in the presence of a Friedel-Crafts ca |
| 5189099 |
Thermoplastic molding materials based on polyesters and polyphenylene ethers |
February 23, 1993 |
| Thermoplastic molding materials containA) from 5 to 94.9% by weight of a polyester,B) from 5 to 94.9% by weight of a polyphenylene ether,C) from 0.1 to 50% by weight of a homopolymer or copolymer obtainable by anionic polymerization of a vinylaromatic compound or a diene, or a mixture thereo |
| 5171800 |
Anionic polymerization with bifunctional initiators |
December 15, 1992 |
| An organic compound of an alkali metal, of the formula I ##STR1## which is obtained by reaction of an appropriate diarylethylene of the formula II with an alkali metal (M), especially lithium, ##STR2## where Ar.sup.1 and Ar.sup.2 are identical or different aryl or hetaryl rad |
| 5166286 |
Polymers having terminal halogen atoms |
November 24, 1992 |
| Polymers having terminal halogen atoms and consisting of cationically polymerizable, olefinically unsaturated monomers are obtainable by polymerization using an initiator system comprising a halogen-containing Lewis acid and a 3-membered to 8-membered cyclic ether. |
| 5122573 |
Preparation of polymers having tertiary chloride end groups |
June 16, 1992 |
| A process for the preparation of polymers of isobutene having tertiary chloride groups by reaction of appropriate polymers which have been prepared by cationic polymerization of isobutene with hydrogen chloride. |
| 5115022 |
Thermoplastics of polyalkylene terephthalates impact modified with functionalized polymers and u |
May 19, 1992 |
| Impact modified thermoplastic blends of components A, B and optionally C, consisting of:A) from 99 to 60 percent by weight of a polymeric rigid matrix consisting of polybutylene terephthalate or polyethylene terephthalateB) from 1 to 40 percent by weight of a polymeric flexibilizing componen |
| 5081251 |
Stilbene compounds use in anionic polymerization |
January 14, 1992 |
| Stilbene compounds of the general formula Ia, Ib or Icwhere Ar.sup.1 to Ar.sup.4 are identical or different aromatic or quasi-aromatic radicals and n is from 0 to 20 and where either at least one of the radicals R.sup.1 to R.sup.6 or R.sup.9 is hydrocarbon-solubilizing alkyl, alkoxy, dia |
| 5064907 |
Polymers with functional groups |
November 12, 1991 |
| Modified homopolymer, random copolymers and/or block copolymers of aromatic vinyls and/or dienes contain functional groups of the general formula (I): ##STR1## where N is nitrogen, O is oxygen, Y is a substituted or unsubstituted bridge which besides carbon additionally contains N- o |
| 5059645 |
Thermoplastic molding materials based on polyphenylene ethers |
October 22, 1991 |
| Thermoplastic molding materials containa) from 20 to 80 parts by weight of a polyphenylene ether,b) from 1 to 20 parts by weight of a block copolymer of the general formula A--B--A' consisting of two polyvinylaromatic blocks A and A' and a partially hydrogenated rubber block B,c) from 0 to 7 |
| 5055527 |
Thermoplastics impact modified with functionalized polymers and use thereof for producing moldin |
October 8, 1991 |
| Impact modified thermoplastic blends of components A, B and optionally C, consisting of:A) from 99 to 60 percent by weight of a polymeric rigid matrix consisting ofa1) 60-99.5 percent by weight of an aromatic vinyl compound present as copolymerized units,a2) 0.5-20 percent by weight of a |
| 5053561 |
Method of isolating trans-1,1,4,4-tetraalkyl-2-butene-1,4-diols |
October 1, 1991 |
| A method of isolating trans-1,1,4,4-tetraalkyl-2-butene-1,4-diols of formula I ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are the same or different and denote C.sub.1 - to C.sub.5 -alkyl, from mixtures thereof with their cis-isomers, wherein the trans-isomer is separ |
| 5053462 |
Modified polyisobutene |
October 1, 1991 |
| A modified polyisobutene has the general formula I ##STR1## where R.sup.1 is an olefinically unsaturated divalent radical, R.sup.2 is one of the radicals --CH.sub.2 --C(.dbd.CH.sub.2)--CH.sub.2 -- or --CH.sub.2 --C(CH.sub.3).dbd.CH-- or m and n are each a degree of polymerization |
| 5053458 |
Thermoplastic molding materials |
October 1, 1991 |
| Thermoplastic molding materials contain, as essential components,A) from 5 to 94% by weight of a polyamide,B) from 5 to 94% by weight of a polyphenylene ether,C) from 1 to 20% by weight of a partially hydrogenated PQP' block copolymer, where.alpha.) the blocks P and P' consist of vinylaromatic m |
| 5036130 |
Transparent thermoplastic molding material, its preparation and its use |
July 30, 1991 |
| A transparent thermoplastic molding material contains, based on A+B,A: from 5 to 95% by weight of polystyrene andB; from 95 to 5% by weight of a nonelastomeric star block copolymer which is composed of, based on B, b.sub.1 from 60 to 95% by weight of styrene and b.sub.2 from 5 to 40% by weig |
| 5003010 |
Salts of polyvalent cations with block polymers of vinylaromatics and conjugated dienes |
March 26, 1991 |
| Block polymers of vinylaromatics and conjugated dienes which posses acidic terminal groups and are in the form of salts which contain divalent or polyvalent metal cations or cation complexes. A process for the preparation of such salts of block polymers containing acid groups, and th |
| 4988773 |
Homopolymers or block copolymers of vinylaromatics and/or dienes with ammonium groups, and prepa |
January 29, 1991 |
| Homopolymers or block copolymers of vinylaromatics and/or dienes and hydrogenated derivatives thereof, which contain end groups of the general formula (I):where A is a substituted or unsubstituted bridge which, in addition to carbon, may contain nitrogen or oxygen, X is 0 or 1, S is an i |
| 4985503 |
Preparation of impact-resistant poly(alkyl)styrene |
January 15, 1991 |
| Process for preparing impact-resistant translucent rubber-modified polystyrene by polymerizing compounds of the styrene class in the presence of a rubber containing thiol groups. |
| 4972023 |
Polymers modified with terminal acid groups and the preparation and use of these polymers |
November 20, 1990 |
| Homopolymers, copolymers or block copolymers obtained from vinylaromatics and/or conjugated dienes and functionally modified at chain ends via amide groups with terminal acid groups or salts thereof, and hydrogenation products of these polymers, which contain salts of functional groups o |
| 4929786 |
Preparation of 1-aryl-1-alkenes |
May 29, 1990 |
| Preparation of 1-aryl-1-alkenes by dehydration of 1-aryl-1-alkanols in the presence of a substance promoting elimination of water, the substance being a triester of phosphorous acid in which at least one of the radicals is an aryl group.The products are suitable as, inter al., initiators |
| 4921775 |
Elements having layers containing mixtures which can be crosslinked by photopolymerization |
May 1, 1990 |
| Mixtures which can be crosslinked by photopolymerization and are based on binders, photopolymerizable monomers which are compatible with these, photoinitiators and thermal polymerization inhibitors contain, as the binder, polymers of the formula I ##STR1## where Pol is a radical |
| 4908414 |
Preparation of impact-resistant poly(alkyl)styrene |
March 13, 1990 |
| Impact-resistant translucent rubber-modified polystyrene is produced by polymerizing compounds from the class of the styrenes in the presence of an elastomeric polymer which contains thiol groups. |
| 4891410 |
Butadiene/sytrene block copolymers having an asymmetric structure, their preparation and their u |
January 2, 1990 |
| In block copolymers of the general formula A--B--A' which have a molecular weight of less than 300,000 and consist of from 18 to 40% by weight of a vinylaromatic hydrocarbon and from 60 to 82% by weight of one or more partially or completely hydrogenated hydrocarbons and in which A and A |
| 4861742 |
Bifunctional alkali metal compounds, preparation and use thereof as polymerization initiators |
August 29, 1989 |
| Bifunctional initiators for anionic polymerization are prepared by reacting an alkenylaromatic compound of the general formula I ##STR1## where Ar is aromatic hydrocarbyl which may be substituted by alkyl or another group inert toward organoalkali metal compounds and may contain |
| 4839434 |
Preparation of homo- and copolymers having terminal mercapto groups and their use |
June 13, 1989 |
| Homo- or copolymers which have terminal mercapto groups, are composed of one or more monomers from the group consisting of butadiene, isoprene and styrene and are obtained by anionic polymerization of one or more of the stated monomers in the presence of one or more organolithium compoun |
| 4835221 |
Salts of polyvalent cations of polymers of conjugated dienes |
May 30, 1989 |
| Polymers and copolymers of conjugated dienes and aromatic vinyl compound which have a carboxyl end group and are present as salts, the salts containing metal cations or metal cation complexes which are bivalent or polyvallent and also a process for preparing such salts of polymers which |
| 4835220 |
Transparent, impact-resistant styrene block polymers and their preparation |
May 30, 1989 |
| Block polymers of vinylaromatic compounds and conjugated dienes which possess acidic terminal groups, are present in the form of lithium salts and form an aluminum complex. A process for the preparation of such complexes and the use of these block polymer complexes as molding materia |
| 4822945 |
Preparation of decene oligomers and use thereof as lubricating oils |
April 18, 1989 |
| Decene oligomers useful with or without hydrogenation as basis for synthetic lubricating oils are prepared by oligomerizing decene-1 in the presence of an alkylaluminum chloride catalyst and an alkyl halide cocatalyst, in a first reaction stage the decene-1 being mixed with the catal |
| 4822530 |
Preparation of polyfunctional initiators for anionic polymerization, oligomeric polyfunctional i |
April 18, 1989 |
| Oligomeric polyfunctional initiators for anionic polymerization of dienes and/or alkenylaromatics are prepared by a process in which a mixture of dialkenylaromatics and alkenylaromatics in a molar ratio of from 1:4 to 1:100, in an inert solvent, is run, at from 25.degree. to 100.degree. |
| 4816520 |
Terminally functionalized polymers and preparation thereof |
March 28, 1989 |
| The terminally functionalized polymers are prepared from living polymers obtained by anionic polymerization of olefinically unsaturated monomers by reacting the living polymers first with capping reagents comprising nitrogen compounds of the general formulae I to VII: ##STR1## wh |
| 4791174 |
Polymers containing amino groups, their preparation and their use |
December 13, 1988 |
| Homo- co- and/or block polymers which are modified with amino functional groups, are obtained from vinylaromatics and/or dienes and contain functional groups of the formulae (I) to (VI) ##STR1## where N is nitrogen, R.sup.1 and R.sup.4 are each hydrogen, alkyl, cycloalkyl or aryl |
| 4786736 |
Preparation of diaziridines and products therefrom |
November 22, 1988 |
| Process for preparing N,N'-dialkyldiaziridines or bicyclic diaziridines of the general formula I or II: ##STR1## where R.sup.1 and R.sup.2 are each alkyl or aryl, A is a substituted or unsubstituted one-membered carbon bridge and B is a substituted or unsubstituted three-membered |
| 4753991 |
Polymers containing amino groups, and their preparation |
June 28, 1988 |
| Homopolymers, copolymers and/or block copolymers which are obtained from vinylaromatics and/or dienes, are modified with functional amino groups and contain functional groups of the formula (I) or (II) ##STR1## where N is nitrogen, R.sup.1 and R.sup.2 are each alkyl or aryl, A is an |
| 4663406 |
Catalyst systems for the cationic polymerization of isobutylene |
May 5, 1987 |
| Isobutylene polymers are prepared by polymerizing the monomers at from 0.2 to 20 bar and from -130.degree. and +60.degree. C. in the presence of from 0.01 to 20 mmol of a boron halide catalyst system which contains as cocatalyst a carboxylic anhydride or carbonyl halide, preferably an |
| 4602068 |
Chlorination of polymers |
July 22, 1986 |
| Solid organic polymers are chlorinated with chlorine to give chlorinated polymers in the presence of a solvent which contains from 20 to 100% by weight of phosgene and in which the polymer is dissolved or suspended, at or below the boiling point of the mixture of chlorine and solvent, by |
| 4599433 |
Reaction of olefins with maleic anhydride |
July 8, 1986 |
| Olefinically unsaturated hydrocarbons, in particular dimeric or polymeric isobutene derivatives, which have a mean number average molecular weight M.sub.n of from 100 to 3000, are reacted with maleic anhydride in a molar ratio of maleic anhydride to olefin of from 0.2 to 3.0, in the pres |
| 4587307 |
Quality of isobutene polymers in reactions with maleic anhydride |
May 6, 1986 |
| The processing properties of isobutene polymers when reacted with maleic anhydride are improved by a method in which these polymers are brought into contact, for an effective period,with aluminum oxide and/or a completely or partially hydrated aluminum oxide at 50.degree.-280.degree. C., |
| 4558104 |
Continuous preparation of isobutylene polymers |
December 10, 1985 |
| Isobutylene polymers are prepared continuously, in aliphatic C.sub.3 -C.sub.6 -hydrocarbons in the presence of soluble cationic polymerization initiators and coinitiators at from -40.degree. to 40.degree. C. and under from 0.01 to 10 bar, and the solvents and monomers vaporized during th |
| 4526927 |
Thermoplastic molding materials |
July 2, 1985 |
| A thermoplastic molding material contains a styrene polymer, a polyphenylene ether and, as a component for improving the impact strength, a block copolymer obtained by reacting an ethylene copolymer with an active polymeric anion. |
| 4296222 |
Manufacture of poly-.alpha.-olefins |
October 20, 1981 |
| A process for the manufacture of poly-.alpha.-olefins by polymerizing .alpha.-olefins by means of a catalyst system comprising (1) a titanium-containing component obtained from (1.1) a compound of the formula TiCl.sub.3.1/3AlCl.sub.3 and (1.2) an organic electron donor, containing ph |
| 4282341 |
Manufacture of homopolymers and copolymers of .alpha.-monoolefins |
August 4, 1981 |
| A process for the manufacture of homopolymers and copolymers of .alpha.-monoolefins by polymerizing the monomer or monomers at relatively low temperatures under relatively low pressures by means of a Ziegler-Natta catalyst comprising (I) a titanium chloride component and (II) an alum |
| 4208497 |
Manufacture of homopolymers and copolymers of .alpha.-monoolefins |
June 17, 1980 |
| A process for the manufacture of homopolymers and copolymers of .alpha.-monoolefins by polymerizing the monomer or monomers at relatively low temperatures under relatively low pressures by means of a Ziegler-Natta catalyst comprising (I) a titanium trichloride component and (II) an a |
| 4207409 |
Catalytic hydrogenation of diolefin polymers |
June 10, 1980 |
| In the hydrogenation of polymers or copolymers synthesized from dienes, or containing diene hydrocarbons, which is as a rule carried out in an organic solvent using hydrogen in the presence of conventional complex hydrogenation catalysts based on metals of sub-group 8 of the periodic |
