Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From reactant having at least one -n=c=x group as well as...
Patent
1984-12-19
1985-11-12
Cockeram, Herbert S.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From reactant having at least one -n=c=x group as well as...
264 53, 264 54, 2643286, 264DIG83, 528 67, 528 73, 528 75, 521163, C08G 1830, C08G 1832
Patent
active
045529450
ABSTRACT:
Polyamide-polyurea containing polymers are disclosed that are derived from the reaction of (A) an organic polyisocyanate; (B) an organic compound having at least two active hydrogen containing groups; and (C) about 15 to about 160 parts per 100 parts of said (B) of a chain extender combination comprising (i) a particular enamine and (ii) an aromatic diamine and optionally (iii) an extender diol wherein the ratio of equivalents of (A) to total equivalents of (B) and (C) is within the range of about 0.90:1 to 1.10:1.
The polymers find particular utility in the preparation of RIM parts having excellent physical properties. At the same time, the polymers are characterized by slower gel times than prior art aromatic diamine extended polymers thereby allowing the filling of larger molded parts.
REFERENCES:
patent: 3314921 (1967-04-01), Berchtold
patent: 3314922 (1967-04-01), Berchtold
patent: 4218543 (1980-08-01), Weber et al.
patent: 4296212 (1981-10-01), Ewen et al.
patent: 4374210 (1983-02-01), Ewen et al.
patent: 4381352 (1983-04-01), McBrayer
patent: 4433067 (1983-02-01), Rice et al.
patent: 4444910 (1984-04-01), Rice et al.
patent: 4448904 (1984-05-01), Dominguez
patent: 4474901 (1984-10-01), Dominguez
W. H. Daly, Polymer Preprints, American Chemical Society, Div. of Polymer Chemistry, p. 569, Sep. 1966, 7, No. 2.
W. H. Daly et al., Die Makromoleculare Chemie 103, (1967), pp. 1-17.
Alberino et al., "Organic Coatings and Plastics Chemistry", vol. 44, Preprints American Chemical Society 181st National Meeting, Atlanta, Georgia, Mar. 29-Apr. 3, 1981, pp. 157-163.
Alberino Louis M.
Regelman Dale F.
Vespoli Nancy P.
Cockeram Herbert S.
Jenkins Michael S.
Rose James S.
The Dow Chemical Company
LandOfFree
Polyamide-polyurea polymers by the RIM process does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Polyamide-polyurea polymers by the RIM process, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyamide-polyurea polymers by the RIM process will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1880897