| Patent Number |
Title Of Patent |
Date Issued |
| 5312984 |
Amidation of vinyl chloride with dimethylamine using a supported palladium catalyst |
May 17, 1994 |
| A continuous process for making N,N-dimethylacrylamide (NNDMA) is disclosed which uses a commodity chemical, namely vinyl chloride (VCl), which is amidated with dimethylamine (DMA) and carbon monoxide in the presence of a supported palladium(O) triorganophosphine catalyst used under cond |
| 5276222 |
Preparation of 4,4,4-trifluoro-2-methyl-1-butene by the dehydrochlorination of 3-chloro-1,1,1-tr |
January 4, 1994 |
| The partially fluorinated alkene 4,4,4-trifluoro-2-methyl-1-butene is produced by the selective dehydrochlorination of 3-chloro-1,1,1-trifluoro-3-methylbutane in the presence of a suitable base at elevated temperatures. The alkene is converted to 1,2-epoxy-4,4,4-trifluoro-2-methylbut |
| 5244993 |
Sulfate-terminated vinylidene fluoride polymers of controlled molecular weight |
September 14, 1993 |
| Polymers prepared from vinylidene fluoride having controlled molecular weights and sulfate end groups are described. The sulfate end group can be displaced with acrylic-type acids to produce the corresponding acrylate terminated poly(vinylidene fluoride) macromolecular monomers. These |
| 5244978 |
Thermoplastic elastomers and other copolymers of acrylate-terminated poly(vinylidene flouride) |
September 14, 1993 |
| Polymers prepared from vinylidene fluoride having controlled molecular weights and sulfate end groups are described. The sulfate end group can be displaced with acrylic-type acids to produce the corresponding acrylate terminated poly(vinylidene fluoride) macromolecular monomers. These |
| 5194508 |
Macromers of vinylidene fluoride. Acrylate-terminated poly(vinylidene fluoride) and its copolyme |
March 16, 1993 |
| Poylmers prepared from vinylidene fluoride having controlled molecular weights and sulfate end groups are described. The sulfate end group can be displaced with acrylic-type acids to produce the corresponding acrylate terminated poly(vinylidene fluoride) macromolecular monomers. These |
| 5032648 |
Preparation of 4,4,4-trifluoro-2-methyl-1-butene by the dehydrochlorination of 3-chloro-1,1,1-tr |
July 16, 1991 |
| The partially fluorinated alkene 4,4,4-trifluoro-2-methyl-1-butene is produced by the selective dehydrochlorination of 3-chloro-1,1,1-trifluoro-3-methylbutane in the presence of a suitable base at elevated temperatures. The alkene is converted to 1,2-epoxy-4,4,4-trifluoro-2-methylbut |
| 4871816 |
Triblock polyarylene polyether with polysiloxane segment and impact-improved blends thereof |
October 3, 1989 |
| Polyarylene polyethers ("PAPE") with vinyl chain ends may be crosslinked to form networks with excellent physical and chemical properties except they tend to be brittle. In particular, a polysulfone ("PSU" made from bisphenol A and dichlorodiphenyl sulfone) with vinylbenzyl chain ends |
| 4868247 |
Chlorinated polyvinyl chloride blends having low melt viscosities |
September 19, 1989 |
| The melt viscosity of chlorinated polyvinyl chloride is reduced by blending it with small amounts of low molecular weight polystyrene type polymers. Such blends also exhibit good mechanical compatibility. |
| 4806617 |
Poly(dinaphthyl arylene ether) and preparation thereof |
February 21, 1989 |
| When two 4-naphthoxyphenyl moieties are connected through a polar linking group, Y, it does not interfere with an oxidation process which results in dehydrogenative polymerization to yield polyarylene polyether (PAPE) polymers having a weight average mol wt greater than 10,000. Homo- and |
| 4467127 |
Process for the oxychlorination of an alkane using a solid solution catalyst containing iron cat |
August 21, 1984 |
| An alkane is reacted with oxygen and available chlorine in the presence of a solid solution catalyst containing iron cations to yield unsaturated hydrocarbons and chlorinated saturated and unsaturated hydrocarbons. In a preferred embodiment of the process, ethane is reacted with oxygen a |
| 4461919 |
Process for the oxychlorination of an alkane using a solid solution catalyst containing iron cat |
July 24, 1984 |
| An alkane is reacted with oxygen and available chlorine in the presence of a solid solution catalyst containing iron cations to yield unsaturated hydrocarbons and chlorinated saturated and unsaturated hydrocarbons. In a preferred embodiment of the process, ethane is reacted with oxygen a |
| 4375569 |
Process for the oxychlorination of an alkane using a solid solution catalyst containing iron cat |
March 1, 1983 |
| An alkane is reacted with oxygen and available chlorine in the presence of a solid solution catalyst containing iron cations to yield unsaturated hydrocarbons and chlorinated saturated and unsaturated hydrocarbons. In a preferred embodiment of the process, ethane is reacted with oxygen a |
| 4161464 |
Devulcanized rubber composition and process for preparing same |
July 17, 1979 |
| A devulcanized rubber composition is disclosed which is obtained by low temperature phase transfer catalyzed devulcanization of commercial scrap rubber, such as a vulcanized polyisoprene rubber, butadiene-styrene rubber, cis-polybutadiene rubber used for vehicle tires. The devulcanized |
