US 6,646,075 B2Granted

High molecular weight perfluorocyclobutane polymers and method of making

Assignee3M Innovative Properties Company

InventorsShane S. Mao, Allen Raymond Siedle

Life of this patent

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Abstract

This invention relates to high molecular weight perfluorocyclobutane polymers and methods of polymerizing trifluorovinyl monomers to form high molecular weight perfluorocyclobutane polymers in the presence of a catalyst or initiator.

Claims24

Dependent claims

A method of making a perfluorocyclobutane (PFCB) polymer comprising a step of polymerizing a monomer comprising two or more trifluorovinyl groups in the presence of an initiator or catalyst.

Dependencies are inferred from the claim text.

Facts

Application: 09/726,837Filed 30 Nov 2000 · us provisional application
Priority: 23 Dec 1999
Published: US 2002/0065382 A130 May 2002
Granted: 11 Nov 2003
Term ends: Not estimatedThe source records don’t support an estimate.

Classification3 codes

C08F 16/32
By an ether radical: monomers containing two or more unsaturated aliphatic radicals
C08F 114/185
Monomers containing fluorine: monomers containing fluorine not covered by the groups C08F114/20 - C08F114/28
C08F
Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Family

Application60/171,867Us provisional application · filed 23 Dec 1999
US 2002/0065382 A1Pre-grant publication · published 30 May 2002
US 6,646,075 B2This patent

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

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