Dynamic vulcanization of polyurethane elastomeric material...

Details Dynamic vulcanization of polyurethane elastomeric material... Dynamic vulcanization of polyurethane elastomeric material...

2006-12-19

2006-12-19

Tucker, Philip C. (Department: 1712)

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C525S420000, C525S424000, C525S453000, C525S460000, C428S423100, C428S474400

Reexamination Certificate

active

07151134

ABSTRACT:
A thermoplastically processable cured rubber composition comprises a crosslinked or cured urethane polymer dispersed in a matrix made of a thermoplastic polymeric material. In one aspect, the matrix forms a continuous phase and the crosslinked urethane polymer is in the form of particles forming a non-continuous phase. The processable rubber compositions can be made by a process of dynamic vulcanization of a urethane prepolymer material in the presence of the thermoplastic matrix material. The process involves combining a urethane prepolymer, a curing agent capable of reacting with the urethane prepolymer, and a thermoplastic material to form a mixture, and heating the mixture at a temperature and for a time sufficient to effect reaction between the curing agent and the prepolymer. Mechanical energy is supplied to the mixture during the heating step so that the crosslinking or curing of the urethane prepolymer occurs while the prepolymer and thermoplastic are undergoing a mixing.

REFERENCES:
patent: 3037954 (1962-06-01), Gessler et al.
patent: 4035565 (1977-07-01), Apotheker et al.
patent: 4287320 (1981-09-01), Kolb
patent: 4419499 (1983-12-01), Coran et al.
patent: 4450263 (1984-05-01), West
patent: 4656228 (1987-04-01), Richter et al.
patent: 4696976 (1987-09-01), Ellerbe et al.
patent: 4696989 (1987-09-01), Oka et al.
patent: 4787991 (1988-11-01), Morozumi et al.
patent: 5206293 (1993-04-01), Sakai et al.
patent: 5354811 (1994-10-01), Kamiya et al.
patent: 5384374 (1995-01-01), Guerra et al.
patent: 5585152 (1996-12-01), Tamura et al.
patent: 6066697 (2000-05-01), Coran et al.
patent: 6310141 (2001-10-01), Chen et al.
patent: 6407174 (2002-06-01), Ouhadi
patent: 6429249 (2002-08-01), Chen et al.
patent: 6437030 (2002-08-01), Coran et al.
patent: 6624251 (2003-09-01), Chmielewski
patent: 0 168 020 (1985-09-01), None
patent: 0 168 020 (1989-10-01), None
English Translation of JP 2000-079928 obtained from JPO website Mar. 2000.
“Fluorine-Containing Polymers”, Encyclopedia of PolymerScience & Engineering, 2ndEdition, vol. 7, pp. 256-267.
“Polyurethanes”, Encyclopedia of Polymer Science & Engineering, 2ndEdition, vol. 13, pp. 274-278.
Web Page, Dyneon™ Fluorothermoplastics, pp. 1-2, downloaded May 8, 2003.
Technical Information, “Viton® fluoroelastomer”, pp. 1-17, 1998.
AFLAS™ The Fluoroelastomer, pp. 1-8, Asahi Glass Co., web site downloaded Apr. 11, 2003.
Web page, Tetrafluoroethylene-propylene rubber, pp. 1-3, unknown date.
Schmiegel, Walter W., “A Review of Recent Progress in the Design and Reactions of Base-Resistant Fluoroelastomers.”, IRC, Jul. 2003.
Michael J. Moore, “Silanes as Rubber-to-Metal Bonding Agents”, 160th Meeting of the Rubber Division, American Chemical Society, Cleveland Ohio, Paper No. 105, pp. 1-17, 2001.

Affiliated with

Also associated with

Rating

Dynamic vulcanization of polyurethane elastomeric material... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dynamic vulcanization of polyurethane elastomeric material..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dynamic vulcanization of polyurethane elastomeric material... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3679372