Rim process using liquid methylene diphenyl diisocyanate

Details Rim process using liquid methylene diphenyl diisocyanate Rim process using liquid methylene diphenyl diisocyanate

1995-06-07

1997-11-11

Vargot, Mathieu D.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

521129, C08G 1808, C08G 1810

Patent

active

056860420

ABSTRACT:
The present invention relates to a process for the production of molded articles via the reaction injection molding technique. According to the RIM process, a reaction mixture is introduced into a closed mold, allowed to react fully, and removed from the mold. More specifically, these reaction mixtures comprise an isocyanate-reactive material, a chain extender, and a stable, liquid diallophanate modified diphenylmethane diisocyanate (MDI). Two specific processes for the preparation of the suitable diallophanate modified diisocyanate are disclosed. These diallophanate modified isocyanates either have an isocyanate group content from about 12 to 30%, or from about 5 to 29%.

REFERENCES:
patent: 3644457 (1972-02-01), Konig et al.
patent: 4055548 (1977-10-01), Carleton et al.
patent: 4115429 (1978-09-01), Reiff et al.
patent: 4118411 (1978-10-01), Reiff et al.
patent: 4160080 (1979-07-01), Konig et al.
patent: 4218543 (1980-08-01), Weber et al.
patent: 4261852 (1981-04-01), Carroll et al.
patent: 4490300 (1984-12-01), Allen et al.
patent: 4490301 (1984-12-01), Pantone et al.
patent: 4490302 (1984-12-01), Ma et al.
patent: 4738991 (1988-04-01), Narayan
patent: 4866103 (1989-09-01), Cassidy et al.
patent: 4910333 (1990-03-01), Slack
patent: 5302303 (1994-04-01), Clatty et al.
patent: 5319053 (1994-06-01), Slack et al.
patent: 5319054 (1994-06-01), Slack et al.

Affiliated with

Also associated with

Rating

Rim process using liquid methylene diphenyl diisocyanate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Rim process using liquid methylene diphenyl diisocyanate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rim process using liquid methylene diphenyl diisocyanate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1226371