Microcellular polyurethane elastomer and manufacturing method of

Details Microcellular polyurethane elastomer and manufacturing method of Microcellular polyurethane elastomer and manufacturing method of

1986-04-28

1987-03-03

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

521904, C08G 1814

Patent

active

046475966

ABSTRACT:
Polyol component essentially consists of polyesterpolyetherpolyol containing polyesterpolyol by the weight ratio of 100:0 to 20:80, in which the polyesterpolyetherpolyol is a copolymer of polytetramethyleneglycol (PTMG) and .epsilon.-caprolactone by the weight ratio of 20:80 to 80:20 with an average molecular weight of 1000 to 3000 and the polyesterpolyol is a condensate of adipic acid as a main acid component with an average molecular weight of 1000 to 3000, is reacted with isocyanate component essentially consists of 4,4'-diphenylmethanediisocyanate (MDI) to make a prepolymer with terminal radical of NCO.
Microcellular polyurethane produced from the prepolymer by foaming and polymerization reaction has the durability for vibration-proof material of car use, combining the advantage of PTMG such as high initial modulus at elongation, low heat built up, low-temperature property and hydrolysis-durability under high humid and hot conditions, with the advantage of polycaprolactone such as good molding property and anti-bending-fatigue property, as well as making up for the disadvantage of both polyols each other. Thus improving the problems of microcellular polyurethane using MDI such as low initial modulus at elongation and high heat built up.

REFERENCES:
patent: 4059659 (1977-11-01), Hilterhaus
patent: 4559366 (1985-12-01), Hostettler

Affiliated with

Also associated with

Rating

Microcellular polyurethane elastomer and manufacturing method of does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microcellular polyurethane elastomer and manufacturing method of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microcellular polyurethane elastomer and manufacturing method of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1017049