Back to results
US 4,305,865 AGranted
Polyamide composition
AssigneeUnitika Ltd.
InventorsTakuji Okada, Teijiro Arai, Yoshinori Ichikawa, Kikuo Tanaka
Life of this patent
Estimating the term…
Abstract
A polyamide composition comprises (a) 50 to 99 wt. % of a polyamide; and (b) 50 to 1 wt. % of a modified polyolefin which is modified with 0.001 to 10 mole % of an adduct component selected from alicyclic carboxylic acids or functional derivatives thereof which has a cis-form double bond in the ring, which can be substituted with a nonmodified polyolefin at a ratio of 1 to 90 wt. parts per 100 wt. parts of said modified polyolefin.
Claims7
A polyamide composition, comprising:
- (a) 50 to 99 wt.% of a polyamide;
- and (b) 50 to 1 wt.% of a polyolefin component, said polyolefin component being a polyolefin modified with 0.001 to 10 mole % of a compound selected from the group consisting of alicyclic carboxylic acids or derivatives thereof, wherein the alicyclic ring of said compound contains a double bond in the cis configuration, or said polyolefin component being a mixture of 1 to 90 parts by weight of an unmodified polyolefin per 100 parts by weight of said modified polyolefin.
A process for preparing a polyamide composition, comprising:
- (a) preparing a modified polyolefin component by heating a mixture of a polyolefin or olefin elastomer and a compound selected from the group consisting of alicyclic carboxylic acids or derivatives thereof, wherein the alicyclic ring of said compound contains a double bond in the cis configuration, in the presence of a radical initiator, and (b) melt-blending said modified polyolefin component with a polyamide.
Dependencies are inferred from the claim text.