Browse Prior Art Database

Method for manufacturing thick glass phenolic laminates (USH0000565)

IP.com Disclosure Number: IPCOM000000561D
Original Publication Date: 1989-Jan-03
Included in the Prior Art Database: 2008-Apr-30
Document File: 8 page(s) / 925K

Publishing Venue

US Statutory Invention Registration (SIRs)

Related People

The United States of America as represented by the Secretary of the Navy: OWNER [+6]

Related Documents

USH000565: PATENT [+10]

Abstract

A vacuum bag autoclave type procedure for curing layers of phenolic resin pregnated fibrous material to form a composite structural part. A straight up heat rise cure cycle is employed in conjunction with a layup and bagging procedure that ensures a relatively free bleed of excess resin during cure and a high-capacity vacuum system for removal of volatiles generated during cure. This method of fabrication releases the majority of volatiles prior to gelation and produces a part having a pore structure that provides an escape path for gases generated during cure and postcure to prevent delamination.

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United States Patent

USH0000565

Ford ,   et al.

January 3, 1989


Method for manufacturing thick glass phenolic laminates

Abstract

A vacuum bag autoclave type procedure for curing layers of phenolic resin pregnated fibrous material to form a composite structural part. A straight up heat rise cure cycle is employed in conjunction with a layup and bagging procedure that ensures a relatively free bleed of excess resin during cure and a high-capacity vacuum system for removal of volatiles generated during cure. This method of fabrication releases the majority of volatiles prior to gelation and produces a part having a pore structure that provides an escape path for gases generated during cure and postcure to prevent delamination.


Inventors:

Ford; Edward J. (Cupertino, CA), Dick; Louis H. (San Jose, CA), Camahort; Jose L. (Mountain View, CA)

Assignee:

The United States of America as represented by the Secretary of the Navy (Washington, DC)

Appl. No.:

06/719,193

Filed:

April 3, 1985


Related U.S. Patent Documents


 

 

 

 

 

 

 

Application Number

Filing Date

Patent Number

Issue Date

 

 

515076

Jul., 1983

 

 

 

 

 

 

 

 

 


Current U.S. Class:

156/286 ; 156/335; 264/102; 264/511

Current International Class:

B29C 70/04 (20060101); B29C 70/44 (20060101); B29C 43/10 (20060101); B29C 43/12 (20060101); B32B 031/00 (); B29C 045/00 (); B29C 047/00 ()

Field of Search:

156/285,286,289,335,382 264/102,101,510,511


References Cited


U.S. Patent Documents

 

 

 

3074903

January 1963

Fincke et al.

3553054

January 1971

Maus

3666600

May 1972

Yoshino

4016022

May 1977

Browning et al.

4062917

December 1977

Hill et al.

4065340

December 1977

Dickerson

4162496

July 1979

Downen et al.

4264671

April 1981

Gillern et al.

4311661

January 1982

Palmer

 

 

 

Primary Examiner: Terapane; John F.
Assistant Examiner: Thomas; J. E.
Attorney, Agent or Firm:

Curry; C. D. B. Daubenspeck; W. C. Moss; K. S.


Parent Case Text



This application is a continuation of application Ser. No. 515,076, filed Jul. 18, 1983, now abandoned.


Claims



What is claimed is:
1. A vacuum bag autoclave process for manufacturing thick laminated structural parts, said-parts having 60 or more layers making said part 0.5 inch or greater in thickness, said parts being formed entirely from layers of phenolic resin impregnated fibrous material, said process allowing the formation of parts of up to 100 layers in thickness which are capable of withstanding a post cure temperature of 450.degree. F. without delamination, said process allowing the formation of said structural parts from phenolic resin impregnated fibrous material having a wide range of resin advancement, which process comprises:
(a) stacking layers of said resin impregnated fibrous material to a desired thickness on a layup surface providing the contour for the part;
(b) curing said stacked layers into a unitary structure by heating said stacked layers at 1.degree. F. per minute or greater until the maximum cure temperature for a prescribed period while simultaneous...

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