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:
Jul. 09, 1991
Filed:
Jul. 31, 1989
Applicant:
Inventors:
Assignee:
Idemitsu Petrochemical Company Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C08J / ; C08L / ;
U.S. Cl.
CPC ...
524522 ; 428288 ; 428392 ; 428391 ; 428426 ; 428429 ; 428441 ; 428523 ; 428500 ; 524500 ; 524502 ; 524504 ; 525 78 ; 525240 ;
Abstract
Disclosed is a glass fiber reinforced polyolefin resin composition comprising 15-80% by weight of polypropylene, 20-60% by weight of polybutene-1 and 5-60% by weight of glass fiber. This resin composition is excellent in the balance of impact strength, stiffness, heat distortion temperature, surface hardness and processability. When this composition is molded, the molded products have no surface roughness and no color shade and have good appearance. The properties are further improved when a modified polyolefin alone or together with a crystal nucleating agent are added.