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:
Mar. 26, 1996
Filed:
Nov. 21, 1994
Applicant:
Inventors:
Toru Katsumata, Shizuoka, JP;
Nobuyuki Matsunaga, Shizuoka, JP;
Assignee:
Polyplastics Co., Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ;
U.S. Cl.
CPC ...
524 91 ; 524 96 ; 524 99 ; 524100 ; 524102 ; 524359 ; 524377 ; 524512 ; 524593 ;
Abstract
Polyacetal resin compositions have excellent weather resistance and environment resistance, which suppress resin deterioration/discoloration, crack and discoloration caused by additive bleeding during extended exposure to light while maintaining the initial molded product surface condition. The polyacetal compositions include a blend of (A) 100 parts by weight of a polyacetal resin, with the specific amounts of (B) an acrylic resin, (C) an oxyalkylene polymer having chains of 2 to 8 consecutive carbon atoms, (D) a UV absorber and (E) two kinds of the hindered amine compounds each having a different molecular weight.