US 4,661,575 AGranted

Dicyclopentadiene polymer product

AssigneeHercules Incorporated

InventorGlenn M. Tom

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Abstract

A novel polymer product comprised of polymerized units of dicyclopentadiene and method of making the same as disclosed.

Claims1

Dependent claims

A substantially crosslinked thermoset polymer comprising polymerized units of dicyclopentadiene, said homopolymer being characterized as having a flexural modulus of at least 150,000 psi at ambient temperature, a notched Izod impact strength of at least about 1.2 ft. lb./in. notch, a plate impact strength at 23.degree. C. of at least about 5 ft. lb. and a percent swell in toluene of less than 200%.

Dependencies are inferred from the claim text.

Facts

Application: 06/839,258Filed 13 Mar 1986 · continuation in part
Priority: 25 Jan 1982
Granted: 28 Apr 1987
Term ends: Not estimatedThe source records don’t support an estimate.

Classification2 codes

C08G 61/08
Prepared by ring-opening of carbocyclic compounds: of carbocyclic compounds containing one or more carbon-to-carbon double bonds in the ring
C08G
Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds

Family

Serial342,455Parent of this continuation-in-part · filed 25 Jan 1982
Serial497,918Parent of this continuation-in-part · filed 25 May 1983
Serial672,424Parent of this continuation-in-part · filed 16 Nov 1984
US 4,584,425 AParent of this continuation-in-part
US 4,507,453 AParent of this continuation-in-part
US 4,661,575 AThis patent

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

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