Robert P Coleman
General Contractor in Provo, UT
License number
Utah 7085692-5501
Issued Date
Aug 5, 2008
Expiration Date
Nov 30, 2017
Category
Contractor
Type
Contractor With LRF
Address
Address
Provo, UT
Personal information
See more information about Robert P Coleman at radaris.comName
Address
Phone
5084 S 150 E, Ogden, UT 84405
4595 Edgeware Ln, Salt Lake Cty, UT 84129
1166 2775 W, Layton, UT 84041
2213 6000 S, Roy, UT 84067
1550 1000 E, Clearfield, UT 84015
Professional information
Enhanced Foaming Of Thermoplastics For In-Situ Fabrication Of Advanced Articles
US Patent:
5122316, Jun 16, 1992
Filed:
Oct 11, 1989
Appl. No.:
7/419723
Inventors:
Hossein Saatchi - Rockford IL
Patrick J. Murray - Rockford IL
Robert E. Coleman - Provo UT
Kurt A. Smith - Rockford IL
Patrick J. Murray - Rockford IL
Robert E. Coleman - Provo UT
Kurt A. Smith - Rockford IL
Assignee:
Sundstrand Corporation - Rockford IL
International Classification:
B29C 6700
US Classification:
264 464
Abstract:
Processes using high temperature thermoplastic polymers in the in-situ fabrication in the formation of foamed composite sandwich or foam articles often result in weak unsound products which may be avoided by utilizing a high temperature thermoplastic in powder form (22), a blowing agent having a high decomposition temperature (24), and, if desired, reinforcers and/or fillers, (28), mixing the thermoplastic, blowing agent and reinforcer and fillers (30), placing the mixture in a mold and, if forming a composite structure, in abutment with at least one skin (34), and applying sufficient heat and/or pressure to the mold and its contents to melt the thermoplastic and generate gas within said mixture by decomposition of the blowing agent (38). Also, an activator may be included with the blowing agent which promotes the production of gas (26). The thermoplastic should be free from any material which will react with the blowing agent or the activator at temperatures below the melting point of the thermoplastic.