Rim compositions using amino acid salt catalysts

Details Rim compositions using amino acid salt catalysts Rim compositions using amino acid salt catalysts

1991-07-30

1992-10-20

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

528 49, 264 51, 2643281, 2643286, 2643288, C08G 1814

Patent

active

051570572

ABSTRACT:
Reaction injection molded (RIM) or structural RIM (SRIM) resins having improved (prolonged) set times, that is, reduced reactivity, may be produced by the addition of an acid blocked amino acid salt catalyst as co-catalyst, or even as a sole catalyst. This permits large molds to be filled completely before cure. However, cure rates are not affected permitting high production rates. The physical properties of RIM and SRIM compositions do not suffer from the addition of these co-catalysts. The amino acid salts may have the formula: ##STR1## where R and R' are independently selected from the group consisting of hydrogen and alkyl having 1 to 12 carbon atoms; where the R" groups are independently alkylene groups having from 1 to 4 carbon atoms; where M is an alkali metal; and where x ranges from 1 to 4.

REFERENCES:
patent: 3010963 (1961-11-01), Erner
patent: 3580868 (1971-05-01), Diehr et al.
patent: 3896052 (1975-07-01), Lockwood et al. (I)
patent: 3903018 (1975-09-01), Kolakowski et al. (I)
patent: 3986991 (1976-10-01), Kolakowski et al. (II)
patent: 4011180 (1977-03-01), Lockwood et al. (II)
patent: 4101465 (1978-07-01), Lockwood et al. (III)
patent: 4709002 (1987-11-01), Younes (I)
patent: 4731427 (1988-03-01), Younes (II)
patent: 4757123 (1988-07-01), Younes (III)
patent: 4800058 (1989-01-01), Younes (IV)
patent: 4879164 (1989-11-01), Younes (V)
patent: 4886700 (1989-12-01), Younes (VI)
patent: 4965038 (1990-10-01), Younes (VII)
Y. Imai, et al., "Trimerization Catalysts for Isocyanurate Foams," European Journal of Cellular Plastics, Oct. 1980, pp. 126-133.
U. E. Younes, "Resins Resist Impact: Versatile SRIM Composites," Urethanes Technology, Jun./Jul. 1990, pp. 20-23.
ARCO Chemical Company, "ARSET.TM. HI 2801 High Impact Resin System," Technical Data, brochure, 1990.

Affiliated with

Also associated with

Rating

Rim compositions using amino acid salt catalysts 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 compositions using amino acid salt catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rim compositions using amino acid salt catalysts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-192484