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:
Nov. 23, 1993
Filed:
Aug. 17, 1992
Applicant:
Inventors:
Assignee:
Polyplastics, Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; C08G / ;
U.S. Cl.
CPC ...
528 13 ; 528 25 ; 528 27 ;
Abstract
A silicon-containing polyacetal copolymer comprises silicone oil units having the formula (A) and polyacetal units: ##STR1## where R.sub.1 is an alkyl or phenyl group; R.sub.2 is a divalent organic group; X is a group selected from among --NH.sub.2, --OH, ##STR2## --R.sub.4 OH, --R.sub.5 COOH, --R.sub.6 COOR.sub.7, --R.sub.8 and OR.sub.9, where R.sub.3 is a divalent organic group, R.sub.4 .about.R.sub.6 are alkylene groups having 1 to 10 carbon atoms, R.sub.7 .about.R.sub.9 alkyl groups having 1 to 10 carbon atoms 1.about.10, and n is a number between 5.about.1000.