| Patent Number |
Title Of Patent |
Date Issued |
| 5405916 |
Process for the preparation of polyolefin/acrylonitrile copolymers and polyolefin/acrylic acid o |
April 11, 1995 |
| Terpolymers of polyolefin/acrylic acid or substituted acrylic acid/acrylonitrile are prepared by combining a polyolefin/acrylic acid or substituted acrylic acid copolymer with at least one dinitrile to form a mixture and reacting the mixture at a temperature of at least 200.degree. C |
| 5284924 |
Process for the preparation of polyolefin/acrylonitrile coploymers and polyolefin/acrylic acid o |
February 8, 1994 |
| Terpolymers of polyolefin/acrylic acid or substituted acrylic acid/acrylonitrile are prepared by combining a polyolefin/acrylic acid or substituted acrylic acid copolymer with at least one dinitrile to form a mixture and reacting the mixture at a temperature of at least 200.degree. C |
| 4490561 |
Method for alkoxylating fluorinated alcohols |
December 25, 1984 |
| Fluorinated alcohols are alkyoxylated using catalysts which provide reaction products having low surface tensions and which are stable in severe acidic conditions. |
| 4374755 |
Magnesium disiloxide compounds |
February 22, 1983 |
| Novel magnesium disiloxide compounds and methods for their preparation are disclosed. The magnesium disiloxides so obtained are useful starting materials for the preparation of active catalysts for olefin polymerizations. |
| 4315995 |
Preparation of cation-exchange resin |
February 16, 1982 |
| A process for preparing a cation-exchange resin is disclosed. The process comprises:(a) treating a chlorine-containing material, which is the distillation residue obtained by chlorinating or oxychlorinating a C.sub.2 -C.sub.40 hydrocarbon, with a sulfonating agent,(b) treating the admixt |
| 4283514 |
Chemicals for termination of polyvinylchloride polymerizations |
August 11, 1981 |
| Butylation of a mixture of xylenols and trimethylphenols gives a product which is suitable for use as a stabilizer for polyvinyl chloride. The material can be added to the reactor during polymerization as a shortstopper and retain effectiveness as a stabilizer in the finished polymer |
| 4258220 |
Purification of 2,6-xylenol streams |
March 24, 1981 |
| 2,6-xylenol admixed with meta,para-cresol is reacted with methanol in a contact with a titanium/SO.sub.4 /magnesium oxide catalyst to yield a product stream which can be readily distilled to give 2,6-xylenol in high purity. The particular catalyst used allows low loss of 2,6-xylenol duri |
| 4229598 |
Chemicals for treatment of PVC |
October 21, 1980 |
| Butylation of a mixture of xylenols and trimethylphenols gives a product which is suitable for use as a stabilizer for polyvinyl chloride. The material can be added to the reactor during polymerization as a short-stopper and retain effectiveness as a stabilizer in the finished polyme |
| 4200706 |
Curing of phenol-formaldehyde resins |
April 29, 1980 |
| Phenol-formaldehyde resoles and novalacs are cured at temperatures of from about 0.degree. C. to about 150.degree. C. and at pressures ranging from about atmospheric pressure to about 5 atmospheres to produce highly cross-linked resins when divinylbenzene is used as a cross-linking agent |
| 4120881 |
Predominantly aliphatic lower hydrocarbon materials from carbonaceous solids |
October 17, 1978 |
| Predominantly aliphatic lower hydrocarbon materials may be obtained from carbonaceous solids by a sequence of steps comprising gasifying the carbonaceous solids, combining the gasification product stream with first and second internal recycle streams, separating certain impurities from |
| 4117243 |
Preparation of o-benzylphenol |
September 26, 1978 |
| A process for preparing o-benzylphenol is disclosed. The process comprises heating benzyl phenyl ether, either in liquid or vapor phase, in the presence of an effective amount of activated alumina catalyst. |
| 4110544 |
Preparation of cresols |
August 29, 1978 |
| A process for preparing cresols from di-hydrocarbyl-substituted cresols, wherein the hydrocarbyl groups contain from 3 to 7 carbon atoms, is disclosed. In the process the di-hydrocarbyl-substituted cresol is contacted with a catalyst (e.g. alumina) in the liquid phase at elevated tem |
| 4110543 |
Method of preparing hydrocarbyl-substituted cresols |
August 29, 1978 |
| A method of preparing hydrocarbyl-substituted cresols is disclosed. The method comprises heating a mixture of mono- or di-hydrocarbyl-substituted cresols and an alcohol, which is benzyl alcohol or a C.sub.1 -C.sub.10 aliphatic alcohol, at an elevated temperature in the presence of a |
| 4108909 |
N-alkylated cresylic acids via direct alkylation in a liquid phase |
August 22, 1978 |
| A method for the production of n-alkylated cresylic acids such as n-hexyl resorcinol by direct alkylation of a cresylic acid such as resorcinol under liquid phase conditions. |
| 4105699 |
Preparation of o-benzylphenol |
August 8, 1978 |
| A process for preparing o-benzylphenol in high selectivity is disclosed. The process comprises heating a mixture of benzyl alcohol and phenol in the presence of an effective amount of activated alumina as a catalyst. |
| 4105698 |
Preparation of cinnamyl-substituted phenols |
August 8, 1978 |
| A process for preparing ortho-substituted cinnamyl phenols is disclosed. The process comprises heating a mixture of cinnamyl alcohol and phenol in the presence of an effective amount of activated alumina. |
| 4100207 |
Preparation of methyl-substituted phenols |
July 11, 1978 |
| A method of preparing methyl-substituted phenols is disclosed. The method comprises heating a mixture of mono- or di-hydrocarbyl-substituted cresols and methanol at an elevated temperature in the presence of a catalytic amount of magnesium oxide. |
| 4087474 |
Process for the purification of 1,2-dichloroethane |
May 2, 1978 |
| A method for the disposal of 2-chloroethanol by conversion to readily biodegradable ethylene glycol comprising;(1) extracting 2-chloroethanol into a neutral or acidic aqueous solution;(2) adjusting the pH of the solution to at least 10 and heating to a temperature of from about 25.degree. C |
| 4071566 |
Preparation of cresols and xylenols from tetramethylphenols and pentamethylphenol |
January 31, 1978 |
| Cresols and xylenols are prepared by reacting a mixture of tetramethylphenols and pentamethylphenol with phenol in the liquid phase in the presence of a catalyst selected from the group consisting of activated carbon, magnesium oxide, magnesium carbonate and magnesium hydroxide. |
| 4060561 |
Method for the preparation of trimethylhydroquinone |
November 29, 1977 |
| Trimethylhydroquinone is prepared by reacting 4-methoxyphenol with methanol over MgO or MgO promoted with oxides of aluminum, uranium, titanium, cerium, manganese, zinc, and iron at temperatures of from about 350.degree. C to about 550.degree. C and pressures up to about 1,000 pounds |
| 4046823 |
Process for producing 1,2-dichloroethane |
September 6, 1977 |
| 1,2-dichloroethane is produced by reacting, in a vapor phase, chlorine and ethane in the presence of a copper containing catalyst at a temperature in the range of from about 200.degree. to about 500.degree. C. |
| 4042631 |
Telomers from .beta.-diketones and vinyl chloride |
August 16, 1977 |
| .beta.-diketones having two ketone groups bonded to a common carbon atom which is bonded to at least one hydrogen atom, such as 2,4-pentanedione, are reacted with vinyl chloride to form telomers. |
| 4035167 |
Recovery of ethane and ethylene from gaseous mixtures |
July 12, 1977 |
| A method for recovering ethane and ethylene from a gaseous mixture is disclosed. The method comprises: (1) contacting said gaseous mixture with a solvent to provide ethane- and ethylene-enriched solvent and (2) recovering from said enriched solvent said ethane and ethylene. The solve |
| 4033983 |
Nonflammable coating material |
July 5, 1977 |
| An improved nonflammable coating composition containing vinyl chloride, dialkyl maleate, and bis (2-chloroethyl) vinyl phosphonate, the improvement comprising forming a tertelomer using a free radical initiator in the presence of xylene, wherein the alkyl constituent of the maleate c |
| 3996297 |
Process for purification of 2,6-xylenol |
December 7, 1976 |
| A method is provided for separating 2,6-xylenol from m,p-cresols by treating the mixture with methanol over alumina catalysts at about 360.degree. C and 400-500 psig. |
| 3994985 |
Carbon black catalysis |
November 30, 1976 |
| Certain organic or organic-aqueous halide exchange reactions are catalyzed by carbon black. |
| 3993701 |
Methylation of .alpha.-naphthol to 2-methyl-1-naphthol |
November 23, 1976 |
| .alpha.-Naphthol is methylated using methanol to form 2-methyl-1-naphthol over a catalyst bed of alumina. The reaction provides high selectivity to 2-methyl-1-naphthol. Alumina catalysts derived from alumina alkoxide hydrolysis are preferred. |
| 3992432 |
Phase transfer catalysis of heterogeneous reactions by quaternary salts |
November 16, 1976 |
| A process for catalyzing heterogeneous ionic organic reactions in a system of multiple liquid phases in which at least two of the reactants are each located in a different phase with respect to the other, the phases containing such reactants differing in polarity. Catalysis is effected b |
| 3961972 |
High strength silicate form and method for producing same |
June 8, 1976 |
| A silicate foam composition having improved strength is produced using a particular combination of ingredients comprising an alkali metal silicate, a filler material, a cementing agent, a vinyl chloride telomer having an average molecular weight from about 600-1,000, a gelling agent, and |
| 3941820 |
Predominantly aliphatic hydrocarbon materials from carbonaceous solids |
March 2, 1976 |
| Predominantly aliphatic hydrocarbon materials may be obtained from carbonaceous solids by a sequence of steps comprising gasifying the carbonaceous solids, combining the gasification product stream with an internal recycle stream, separating certain impurities from the combined strea |
| 3932552 |
Integrated process for producing C.sub.2 hydrocarbons from carbon monoxide and hydrogen |
January 13, 1976 |
| C.sub.2 hydrocarbons may be produced from carbon monoxide and hydrogen using an integrated process scheme involving reacting carbon monoxide and hydrogen to produce a hydrocarbon effluent containing hydrogen and subsequently hydropyrolyzing said effluent and recovering C.sub.2 hydroc |
| 3931238 |
Preparation of alcohols and ethers |
January 6, 1976 |
| Alcohols and ethers are prepared by reacting a substituted hydrocarbon compound containing halogen or alkyl sulfate groups with an alkali metal hydroxide, in aqueous solution, in the presence of a catalytic amount of certain betaines and recovering from the reaction mixture the desired |
