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:
Oct. 26, 1982
Filed:
Oct. 30, 1978
Bengt A Sallmen, Perstorp, SE;
Carl-Axel E Sjogreen, Perstorp, SE;
Mans O Mansson, Helsingborg, SE;
Keith F Ogemark, Perstorp, SE;
Perstorp AB, Perstorp, SE;
Abstract
Secondary stabilizer for vinyl chloride polymers consisting of a solid mixture obtained by melting together pentaerythritol and at least one of the compounds selected from the group consisting of dipentaerythritol, tripentaerythritol, trimethylol propane, neopentyl glycol, trimethylol ethane, anhydroennea heptitol, sorbitol, mannitol, bisphenol A and other organic hydroxy compounds containing at least two hydroxy groups. The stabilizer is characterized in that the mixture has the form of a dispersion of very fine-grained particles in a suitable liquid grinding agent, which dispersion has been obtained by wet grinding said mixture in said grinding agent.