The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 15, 1982
Filed:
Jul. 28, 1980
Edward G Ballweber, Glenwood, IL (US);
Nalco Chemical Company, Oak Brook, IL (US);
Abstract
Polymers are prepared from a vinyl monomer or monomers by a homopolymerization or a copolymerization reaction which occurs exothermically, said reaction being carried out by mixing the vinyl monomer or monomers with an additive comprising an endothermic compound which is unreactive with said monomer or monomers and the resultant homopolymers or copolymers and has a phase transition point at the temperature of the polymerization reaction with the absorption of heat, the amount of said endothermic compound being sufficient to counterbalance the major part of the exothermic heat of reaction, the process being especially useful for preparing polymers in solid form or for preparing high solid suspensions of polymers.