| Patent Number |
Title Of Patent |
Date Issued |
| 5668204 |
Stabilization of polycarbonates having high heat distortion temperatures |
September 16, 1997 |
| A thermoplastic molding composition containing an aromatic polycarbonate and a particular siloxane compound is disclosed. The composition which is based on a polycarbonate resin having bifunctional structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup. |
| 5310793 |
Mixtures of polyalkylene terephthalates, new polycarbonates and/or polyester-carbonates and elas |
May 10, 1994 |
| The mixtures according to the present invention of polyalkylene terephthalates, certain new polycarbonates and/or polyester-carbonates and elastomers have a particularly favourable low temperature strength/heat distortion point relationship compared with conventional moulding composi |
| 5276213 |
Special dihydroxydiphenyl bicycloalkanes, their production and their use for the production of h |
January 4, 1994 |
| Dihydroxydiphenyl bicycloalkanes characterized in that they contain 9 to 13 ring C atoms in the bicycloaliphatic component are disclosed. The disclosed compounds were found to be suitable for the preparation of high molecular weight, thermoplastic polycarbonate resins having favorable |
| 5250621 |
Interpolymers of aromatic polyesters and rubbers |
October 5, 1993 |
| Interpolymers of aromatic polyesters and cross-linked (or partially cross-linked) rubbers and a process for their production in which a mixture of a cross-linked rubber in latex form containing reactive groups and an aqueous solution of an alkali metal or alkaline earth metal dipheno |
| 5227458 |
Polycarbonate from dihydroxydiphenyl cycloalkane |
July 13, 1993 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
| 5212280 |
Polycarbonate from special dihydroxydiphenyl bicycloalkane |
May 18, 1993 |
| Dihydroxydiphenyl bicycloalkanes characterized in that they contain 9 to 13 ring C atoms in the bicycloaliphatic component are disclosed. The disclosed compounds were found to be suitable for the preparation of high molecular weight, thermoplastic polycarbonate resins having favorable |
| 5210328 |
Process for the preparation of substituted cycloalkylidene bisphenols |
May 11, 1993 |
| This invention relates to a process for the preparation of substituted cycloalkylidene bisphenols from phenols and special cycloalkanones in the presence of acid condensation catalysts and in the presence of water. |
| 5194467 |
Stabilization of highly heat distortion resistant polycarbonates |
March 16, 1993 |
| Highly heat distortion resistant moulding compositions are disclosed comprising an aromatic polycarbonate having molecular weights Mw (weight average) of a least 10,000, containing bifunctional carbonate structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and |
| 5180781 |
Process for the production of alloys of rubbers and aromatic polyesters |
January 19, 1993 |
| The process for the production of an alloy of cross-linked or partially cross-linked rubbers and aromatic polyesters basically consists of reacting a mixture of a rubber latex and an aqueous solution of an alkali metal or alkaline earth metal diphenolate with a solution of a dicarbox |
| 5162411 |
Carbonates, their production and their use as flow aids |
November 10, 1992 |
| A carbonate corresponding to formula (I) ##STR1## in which R is aromatically bound polystyrene moiety and --O--D--O-- is a diphenolate moiety in which --D-- is a divalent group containing 6 to 30 carbon atoms and r is 0 or 1 is disclosed. The carbonate is useful as a flow aid for |
| 5145911 |
Polycarbonate molding composition |
September 8, 1992 |
| A thermoplastic molding composition comprising (i) an aromatic polycarbonate having high thermal dimensional stability and based on a substituted dihydroxydiphenylcycloalkane, (ii) other aromatic polycarbonate resin and (iii) graft, particle-type diene rubbers is disclosed. The compo |
| 5137970 |
Polycarbonate/ABS compositions of high heat resistance |
August 11, 1992 |
| A molding composition comprising a mixture of an aromatic polycarbonate based on a substituted dihydroxy diphenylcyclohexane, a copolymer of a resin forming vinyl monomer and a graft polymer of a resin forming monomer onto a diene rubber, and a process for its manufacture and use for mak |
| 5134195 |
Ternary thermoplastic mixtures |
July 28, 1992 |
| The invention relates to ternary thermoplastic mixtures of polycarbonates, polyurethanes and graft polymers and, optionally, standard additives and to processes for the production of these mixtures. |
| 5132154 |
Polycarbonate mixtures in optical applications |
July 21, 1992 |
| An article for an optical application is disclosed comprisinga) about 0.1 to 99.9 wt. % of a thermoplastic, aromatic polycarbonate resin containing carbonate structural units corresponding to (Ia): ##STR1## wherein R.sup.1 and R.sup.2 independently represent hydrogen, halogen, C.sub |
| 5128437 |
Polycarbonate from bi(tetrahydrofuran)di phenol |
July 7, 1992 |
| The invention relates to the use of the diphenol corresponding to formula (I) ##STR1## for the production of high molecular weight, thermoplastic, aromataic polycarbonates, to a process for the production of these polycarbonates and to the new thermoplastic having improved heat r |
| 5126428 |
Polycarbonate from dihydroxy diphenyl cycloalkane |
June 30, 1992 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
| 5126404 |
Polycarbonate molding compositions |
June 30, 1992 |
| Thermoplastic molding composition comprisingA. 5 to 99% by weight (based on A+B) of a polycarbonate based on substituted dihydroxydiphenyl cycloalkanesB. 1 to 95% by weight (based on A+B) of a graft polymer prepared by a special process of5 to 90 parts by weight of a mixture ofB.1.1. 50 to 9 |
| 5122571 |
Moulding compounds of polyamides and graft polymers containing tert.-butylacrylate |
June 16, 1992 |
| This invention relates to new thermoplastic moulding compounds of polyamides, graft polymers containing tert.-butylacrylate in the shell and optionally also rubber polymers as impact strength modifiers. |
| 5115050 |
Polyamide moulding compositions containing finely divided polyarylene sulphides |
May 19, 1992 |
| The invention relates to a process for the preparation of polyamide moulding compositions containing 0.1 to 40 wt. % of a polyarylene sulphide by reaction of polyamide-forming components in the presence of polyarylene sulphides. |
| 5109076 |
Polydiorganosiloxane/polycarbonate block cocondensates based on certain dihydroxydiphenylcycloal |
April 28, 1992 |
| Thermoplastic polydiorganosiloxane/polycarbonate block copolymers based on dihydroxydiphenylcycloalkanes corresponding to the following general formula (I): ##STR1## wherein R.sup.1 and R.sup.2 independently represent hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C. |
| 5105004 |
Aromatic ethers |
April 14, 1992 |
| The new aromatic ethers of the formulae ##STR1## can be used for the preparation of plastics which, in turn, can be processed further to give moulded articles, films, foils and filaments. The plastics prepared from the new aromatic ethers are distinguished by exceptional dimensio |
| 5104963 |
Two-stage process for the production of polycarbonates based on special dihydroxydiphenylalkanes |
April 14, 1992 |
| A process for the preparation of a phenol and solvent free polycarbonate resin is disclosed comprising(i) forming an oligomeric polycarbonate comprising structural units based on a diphenol corresponding to ##STR1## wherein R.sup.1 and R.sup.2 independently of one another denote a m |
| 5104945 |
Heat resistant polycarbonate molding compositions |
April 14, 1992 |
| Thermoplastic molding compositions comprising mixtures ofa) 1-99 wt. % of a specific polycarbonate based on dihydroxydiphenylcycloalkanes,b) 1-99 wt. % of other polycarbonate, in particular those based on bisphenol A, andc) 1-95 wt. % of a silicone rubber, in particular silicone graft rubber |
| 5104723 |
Mixtures of special new polycarbonates with other thermoplastics or with elastomers |
April 14, 1992 |
| Mixtures containinga) thermoplastic polycarbonates based on diphenols corresponding to formula (I) ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and c.sub |
| 5100960 |
Thermoplastic molding compositions of a polysiloxane block copolycarbonate and a polycarbonate b |
March 31, 1992 |
| The invention relates to a thermoplastic molding composition comprising(A) from 10 to 98 parts by weight of a polydiorganosiloxane-polycarbonate block copolymer having a weight average molecular weight of from 10,000 to 200,000 and containing from 75 to 97.5 wt. % of aromatic carbonate s |
| 5086159 |
Stabilized copolycarbonate from dihydroxy diphenyl cycloalkane |
February 4, 1992 |
| Copolycarbonates derived from known bisphenols and small quantities of dihydroxydiphenyl cycloalkanes corresponding to formula (I) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C.sub.8 alkyl, |
| 5068302 |
Polysiloxane-polycarbonate block copolymers based on certain dihydroxydiphenylcycloalkanes |
November 26, 1991 |
| Polydiorganosiloxane-polycarbonate block copolymers based on dihydrodiphenylcycloalkanes corresponding to formula (I) ##STR1## in which R.sup.1, R.sup.2 independently of one another represent hydrogen, halogen, preferably chlorine or bromine, C.sub.1-8 alkyl, C.sub.5-6 cycloalkyl |
| 5041521 |
Polyester-carbonate based on 1,1-bis-(4-hydroxyphenyl)-alkylcycloalkanes |
August 20, 1991 |
| Polyesters and polyester-carbonates based on dihydroxydiphenylcycloalkanes corresponding to the following general formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen, a C.sub.1 -C.sub.12 hydrocarbon radical or halogen; m represents an |
| 5025065 |
Fire-retardant polycarbonates and polyesters |
June 18, 1991 |
| Fire-retardant polycarbonates, polyester carbonates and polyesters based on dihydroxydiphenyl cycloalkanes ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, preferably chlorine or bromine, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycl |
| 5021542 |
Polycarbonate of polysubstituted cyclohexylidene bisphenols |
June 4, 1991 |
| Thermoplastic aromatic polycarbonates having average molecular weights Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 independently of one another represent hydrogen, a C.s |
| 5010163 |
Polycarbonate of cycloalkylidene bisphenol |
April 23, 1991 |
| Thermoplastic aromatic polycarbonates having average molecular weight Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding to formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent hydrogen, |
| 5010162 |
Polycarbonate of alkyl cyclohexylidene bisphenol |
April 23, 1991 |
| Thermoplastic aromatic polycarbonates having average molecular weights Mw of at least 10,000 which contain bifunctional carbonate structural units corresponding to formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently of one another represent hydrogen, |
| 5010138 |
Thermoplastic interpolymers and their use in mixtures of polyamide and styrene copolymers and/or |
April 23, 1991 |
| The invention relates to thermoplastic interpolymers having a certain chemical composition and to their use in thermoplastic molding compounds of polyamides and styrene copolymers and/or graft polymers for the production of improved blends of polyamides and styrene copolymers and/or |
| 4997974 |
Bisphenol derivatives and polymers thereof |
March 5, 1991 |
| Bisphenol derivatives corresponding to formula (I) ##STR1## in which R.sup.1 is hydrogen, C.sub.1-4 alkyl,R.sup.2 is C.sub.1-12 alkyl,R.sup.3 is C.sub.1-12 alkyl,X is C.sub.1-12 alkylene,Y is C.sub.1-12 alkylene,Z is hydrogen, ##STR2## and polymers produced thereform containing struc |
| 4985532 |
Thermotropic polyesters, a process for their production and their use for the production of mold |
January 15, 1991 |
| The new thermotropic polyesters containing recurring structural units corresponding to the following formulae ##STR1## show excellent mechanical properties and good processibility. They may be used in the usual way for the production of moldings, filaments, fibers and films. |
| 4985486 |
Reinforced/filled blends of thermoplastic interpolymers and polyamides and a process for their p |
January 15, 1991 |
| The invention relates to thermoplastic molding compounds of reinforced (for example with glass fibers) and/or filled (for example with kaolin) polyamides, interpolymers having a certain chemical composition (of polyamides and thermoplastic copolymers) and, optionally, a rubber modifi |
| 4982014 |
Dihydroxydiphenyl cycloalkanes, their production and their use for the production of high molecu |
January 1, 1991 |
| Dihydroxydiphenyl cycloalkanes corresponding to the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another represent hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.10 aryl and C.sub.7 -C.sub.12 aralkyl,m is an integer of fro |
