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:
Jan. 27, 1981
Filed:
Feb. 27, 1979
The Furukawa Electric Co., Ltd., Tokyo, JP;
Abstract
A method of crosslinking poly-.alpha.-olefin series resins, comprising the steps of subjecting a resin composition to graft reaction under a volume ratio of oxygen to the resin composition set at less than 0.1 and at temperatures ranging between the thermal decomposition temperature of the radical generating agent and 230.degree. C., said composition comprising at least one kind of poly-.alpha.-olefin series resin of polypropylene series resin, poly(butene-1) series resin or poly(4-methyl pentene-1) series resin; a radical generating agent of dibenzoyl peroxide or t-butyl perbenzoate; and a silane compound having the general formula of RR'SiY.sub.2, where 'R' is a monovalent olefinically unsaturated hydrocarbon group or hydrocarbonoxy group, 'Y' is an organic group capable of hydrolysis, and 'R'' is a monovalent hydrocarbon group except aliphatic unsaturated hydrocarbon groups, or the group 'Y' or 'R' defined above, and bringing the resultant graft polymer into contact with water so as to cause crosslinking reaction under the action of a silanol condensation catalyst added to the reaction system before or after the graft reaction step.