Wilbur Paul Ubrich

US Patent:

50984969, Mar 24, 1992

Filed:

Jun 30, 1988

Appl. No.:

7/213412

Inventors:

Walter V. Breitigam - Katy TX
Wilbur P. Ubrich - Katy TX
Gary A. Hunter - Houston TX
Georg G. Viola - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

B29D 900
B29C 4330

US Classification:

156180

Abstract:

A process for preparing a postformable composite article of a heat curable thermosetting polymer having a substantial length and a non-trivial uniform cross-sectional shape. The process includes controlling the pull rate and the temperature of the heating and cooling sections of the die in response to the viscosity and the cure kinetics of the thermosetting polymer composition and (2) the non-trivial shape of the article.

US Patent:

20180355096, Dec 13, 2018

Filed:

Jun 5, 2018

Appl. No.:

16/000277

Inventors:

- Columbus OH, US
Wilbur Paul Ubrich - Katy TX, US
Jennifer W. Chung - Katy TX, US
Amitabh Bansal - Sugar Land TX, US
Terrry Loy - San Clemente CA, US

International Classification:

C08G 59/17
C08G 59/02
C08J 5/04
F03D 1/06
B29C 70/42
B29C 70/54

Abstract:

Compositions and methods for forming epoxy resin systems are provided. In one embodiment, a composition is provided for an epoxy resin system including a liquid epoxy resin component including a liquid epoxy resin and an acrylate monomer, a curing agent component including a compound having an imidazole group and, optionally, a co-curing agent for the compound having an imidazole group comprising a phenolic monomer compound, a branched chain carboxylic acid, and combinations thereof, and a non-aromatic polyol compound. The composition may be used to form composites, such as used in commercial wind turbine blade manufacturing.