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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Doak; Kenneth W.
Address:
Murrysville, PA
No. of patents:
8
Patents:




Patent Number Title Of Patent Date Issued
4647620 Polyblends of a copolymer of a vinyl aromatic monomer and an unsaturated dicarboxylic acid anhyd March 3, 1987
A polyblend which has a high heat distortion temperature and good impact strength, and which may be transparent, is produced by blending 20 to 95 percent by weight of an anhydride polymer of a vinyl aromatic monomer, such as styrene or p-methylstyrene, with an unsaturated dicarboxylic ac
4595727 Blends of a polyglutarimide with a rubber-modified vinyl chloride resin June 17, 1986
Thermoplastic blends having high heat distortion temperature and impact strength comprise 10-90 weight percent of a polyglutarimide, and 90-10 weight percent of a rubber-modified vinyl chloride resin prepared by polymerization of vinyl chloride in the presence of 2 to 50 percent of a
4551500 Blends of a rubber-modified vinyl chloride resin, an unmodified vinyl chloride resin, and a poly November 5, 1985
A polyblend which has high heat distortion temperature and high impact strength is produced from 80 to 20 percent by weight of vinyl chloride resins, which comprise 90 to 30 percent by weight of a rubber-modified vinyl chloride resin and 10 to 70 percent by weight of a vinyl chloride
4469845 Blends of a rubber-modified polyvinyl chloride resin and a polymer of a vinyl aromatic monomer a September 4, 1984
A polyblend of (a) 80-20 percent of a rubber-modified vinyl chloride resin, prepared by polymerization of vinyl chloride in the presence of 2 to 20 percent of a rubber, and (b) 20-80 percent of copolymers or terpolymers of a vinyl aromatic monomer, such as styrene, an unsaturated dicarbo
4469844 Blends of a rubber-modified polyvinyl chloride resin and rubber-modified polymer of a vinyl arom September 4, 1984
A polyblend exhibiting high heat distortion temperatures, high impact strength, good processability, and which can be made in a substantially transparent form is produced from (a) 80-20 percent of a rubber-modified vinyl chloride resin, prepared by polymerization of vinyl chloride in the
4339554 Polyvinyl chloride resin blends July 13, 1982
A polyvinyl chloride resin blend having a high heat distortion temperature, comprising a blend of 60-80 percent by weight of a polyvinyl chloride resin and 20-40 percent by weight of a copolymer of a vinyl aromatic monomer, such as styrene, and either 14-27 percent by weight of maleic
4248984 Clear impact resistant thermoplastic star-block copolymers February 3, 1981
The preparation of a branched, radial block copolymer having improved falling weight impact properties, especially at temperatures from room temperature to -40.degree. C., and having bimodal distribution of molecular structure in the arms of the block copolymer is described.
4248983 Clear impact resistant thermoplastic star-block copolymers February 3, 1981
The preparation of a branched, radial block copolymer having improved falling weight impact properties, especially at temperatures from room temperature to -40.degree. C. is described.


 
 
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