| Patent Number |
Title Of Patent |
Date Issued |
| 6444719 |
Method for producing crystalline methacrylic resin and plastic foam |
September 3, 2002 |
| Provided are a method for producing a crystalline methacrylic resin, the method comprising a step of bringing a mixture of an isotactic methyl methacrylate-type polymer and a syndiotactic methyl methacrylate-type polymer into contact with high pressure gas and a method for producing a |
| 5728793 |
Process for production of methacrylate polymers |
March 17, 1998 |
| Disclosed is a process for producing a methacrylate polymer, wherein a monomer feed composed of methyl methacrylate or a mixture of at least 70 weight % of methyl methacrylate and not more than 30 weight % of one or more vinyl monomers copolymerizable with methyl methacrylate is cont |
| 5135791 |
Optical device |
August 4, 1992 |
| An optical device comprising a mixture of a polymer constituted mainly of aromatic vinyl monomer units and polyphenylene ether, characterized in that the average molecular weight of the polyphenylene ether is from 0.3 to 0.7 expressed in terms of the intrinsic viscosity measured in c |
| 4978702 |
Coating composition |
December 18, 1990 |
| A coating composition is disclosed which includes(A) 15 to 65% by weight (calculated as SiO.sub.2) of colloidal silica,a partially hydrolyzed and partially co-condensed product of the following component (B) and component (C):(B) 10 to 80% by weight (calculated as R.sup.1 Si(OH).sub.3) of a |
| 4918152 |
Process for the production of formed article of aromatic vinyl resin |
April 17, 1990 |
| A process for the production of formed articles of aromatic vinyl resin having a small birefringence and a high refractive index by a cast polymerization process rapidly and with high productivity, wherein the formed articles of aromatic vinyl resin are light and useful for the produ |
| 4837286 |
Method for the production of polymethacrylates |
June 6, 1989 |
| Improved method for the production of polymethacrylates by a rapid polymerization, which comprises polymerizing an unsaturated monomer selected from a methacrylate and a monomer mixture comprising predominantly a methacrylate which may partially contain a polymer of the monomer (i.e. |
| 4789709 |
Process for the production of heat resistant thermoplastic copolymer |
December 6, 1988 |
| A process for the production of a thermoplastic copolymer having excellent heat distortion resistance is disclosed. The process includes heat-treating a raw copolymer comprising a vinyl monomer unit including methacrylic and/or acrylic acid units in the presence of a specific ring-cl |
| 4717756 |
Process for preparing methacrylate polymer |
January 5, 1988 |
| A polymerization can be carried out rapidly by polymerizing a methacrylate ester or a mixture of unsaturated monomers comprising the methacrylate ester as a main component in the presence of (1) a hydroperoxide polymerization initiator, (2) a reductant containing sulfur in a molecule, |
| 4699964 |
Antistatic acrylic resin composition and method for the production thereof |
October 13, 1987 |
| An acrylic resin composition having excellent permanent antistatic properties, which comprises a copolymer of an acrylic monomer comprising predominantly methyl methacrylate with a specific sulfonate and optionally a specific alkylene oxide and/or acidic phosphate, and a method for the |
| 4661571 |
Process for the production of heat resistant methacrylic resin |
April 28, 1987 |
| An improved process for the production of a methacrylic polymer having excellent heat resistance, which comprises radical-polymerizing a monomer or monomer mixture consisting of 80 to 100% by weight of methyl methacrylate and 0 to 20% by weight of a copolymerizable vinyl monomer in t |
| 4604414 |
Antistatic acrylic resin composition and method for the production thereof |
August 5, 1986 |
| An acrylic resin composition having excellent permanent antistatic properties, which comprises a copolymer of an acrylic monomer comprising predominantly methyl methacrylate with a specific sulfonate and optionally a specific alkylene oxide and/or acidic phosphate, and a method for the |
| 4344906 |
Process for producing glass fiber-reinforced transparent cast sheet |
August 17, 1982 |
| A process for producing glass fiber-reinforced, transparent cast sheets comprising impregnating glass fibers with a resin syrup comprising 10 to 50 parts by weight of a copolymer (A) consisting essentially of 20 to 95% by weight of an aromatic vinyl compound and 5 to 80% by weight of oth |
| 4287317 |
Continuous process for producing rubber-modified methyl methacrylate syrups |
September 1, 1981 |
| A continuous process for producing rubber-modified methyl methacrylate syrups which comprises continuously supplying a material liquor comprising 1 to 20 parts by weight of a rubbery polymer dissolved in 100 parts by weight of a monomer comprising 60 to 100% by weight of methyl metha |
| 4211742 |
Process for the continuous casting of liquid polymerizable compositions |
July 8, 1980 |
| A continuous process for producing plate-like polymer articles which comprises subjecting a liquid polymerizable composition comprising a syrup of methyl methacrylate and a specified amount of a polymerization initiator of the formula: ##STR1## (in which R is a C.sub.4 -C.sub.10 |
