Scott E Lucas

US Patent:

60137304, Jan 11, 2000

Filed:

Jul 28, 1997

Appl. No.:

8/750394

Inventors:

Patrick T. McGrail - Cleveland, GB
Stephen D. Jenkins - Cleveland, GB
Jeffrey T. Carter - Cleveland, GB
Peter R. Ciriscioli - Phoenix AZ
Scott D. Lucas - Scottsdale AZ
Robin K. Maskell - Chandler AZ

Assignee:

Fiberite, Inc. - Tempe AZ

International Classification:

C08L 902
C08L 6300
C08L 6302
B32B 2704

US Classification:

525113

Abstract:

A curable composition and a method of making it comprises reacting in the presence of a catalyst epoxy resin(s) having at least 0. 05% by weight of epoxy resin oligomer with a solid rubber which is swellable or soluble in the reaction mixture and possessing at least 1% by weight of reactive groups, in a rubber:epoxy resin(s) weight ratio of between 1:1 and 1:20, wherein said epoxy resin(s) comprises (a) at least one epoxy resin having an epoxy functionality of greater than three and (b) at least one second epoxy resin having a functionality of greater than one but not more than three; heating to effect the reaction, cooling to substantially ambient temperature, and adding any remaining portion of epoxy resin and curing agent(s).

US Patent:

62420836, Jun 5, 2001

Filed:

Jul 20, 1999

Appl. No.:

9/357801

Inventors:

Patrick T. McGrail - Cleveland, GB
Stephen D. Jenkins - Cleveland, GB
Jeffrey T. Carter - Cleveland, GB
Peter R. Ciriscioli - Phoenix AZ
Scott D. Lucas - Scottsdale AZ
Robin K. Maskell - Phoenix AZ

Assignee:

Cytec Industries Inc. - Stamford CT

International Classification:

B32B 2704
B32B 2738
C08L 6300
C08L 6302

US Classification:

4282974

Abstract:

A shaped article optionally containing a prepreg, or a composite derived from the shaped article with the prepreg, is prepared from a curable composition derived from the reaction in the presence of a catalyst of epoxy resin having at least 0. 05% by weight of an epoxy resin oligomer with a solid rubber possessing at least 1% by weight of reactive groups and which is swellable or soluble in the reaction mixture, in a rubber epoxy resin weight ratio between 1:1 to 1:20, wherein said epoxy resin comprises (a) at least one first epoxy resin having an epoxy functionality of greater than three and (b) at least one second epoxy resin having a functionality of greater than one to three.