US 4,791,147 AGranted

Non-crosslinked foam

AssigneeShell Oil Company

InventorsHaruhiko Tanaka, Fukashi Kagawa, Kouji Nakashima

Life of this patent

Estimating the term…

Abstract

A non-crosslinked foam of a composition comprising: (A) 72 to 98% by weight of a 1-butene polymer; and (B) 28 to 2% by weight of a propylene polymer, the percentages being based on the total weight of the 1-butene polymer and the propylene polymer.

Claims10

Dependent claims

A non-crosslinked foam of a composition comprising:

(A) 72 to 98% by weight of a 1-butene homopolymer, and
(B) 28 to 2% by weight of a propylene polymer, the percentages being based on the total weight of the 1-butene polymer and the propylene polymer.

Dependencies are inferred from the claim text.

Facts

Application: 07/121,497Filed 16 Nov 1987 · division
Priority: JP 61-21584416 Sep 1986
Granted: 13 Dec 1988
Term ends: Not estimatedThe source records don’t support an estimate.

Classification16 codes

C08J 9/0061
Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof: characterized by the use of several…
B65D 53/00
Sealing or packing elements
C08L 23/20
Homopolymers or copolymers of hydrocarbons having four or more carbon atoms: having four to nine carbon atoms
C08J 2323/20
Homopolymers or copolymers of hydrocarbons having four or more carbon atoms: having four to nine carbon atoms

Family

Serial96,100Parent of this division · filed 11 Sep 1987
US 4,739,547 AParent of this division
US 4,791,147 AThis patent

From the US filing history. Foreign family members aren’t listed.

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