Process for the production of elastic molded articles

Details Process for the production of elastic molded articles Process for the production of elastic molded articles

1986-04-18

1988-09-27

Welsh, Maurice J.

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

Synthetic resins

Cellular products or processes of preparing a cellular...

264 51, 2643281, 2643286, 2643288, 521163, 521167, 528 68, 528 76, 528 77, C08G 1814

Patent

active

047742640

ABSTRACT:
Elastic molded articles having a closed surface layer are made from polyurea elastomers by the reaction injection molding technique. These polyurea elastomers are prepared from a polyisocyanate in which all of the isocyanate groups are aromatically bound, a polyether and a diamine. The polyether has at least two isocyanate-reactive groups and a molecular weight from 1800 to 12,000. At least 50% of the isocyanate-reactive groups in the polyether are primary and/or secondary amino groups. The diamine has a molecular weight from 108 to 400 and primary and/or secondary aromatically bound amino groups. Known auxiliary agents and additives may also be employed.

REFERENCES:
patent: 3726952 (1973-04-01), Boden et al.
patent: 3838076 (1974-09-01), Moss et al.
patent: 3925527 (1975-12-01), Kleimann et al.
patent: 3993606 (1976-11-01), von Bonin et al.
patent: 4024090 (1977-05-01), von Bonin et al.
patent: 4033912 (1977-07-01), Kleimann et al.
patent: 4058492 (1977-11-01), von Bonin et al.
patent: 4076695 (1978-02-01), Keil
patent: 4098731 (1978-07-01), von Bonin et al.
patent: 4111861 (1978-09-01), Godlewski
patent: 4201847 (1980-05-01), Kleimann et al.
patent: 4218543 (1980-08-01), Weber et al.
patent: 4246363 (1981-01-01), Turner et al.
patent: 4269945 (1981-05-01), Vanderhider et al.
patent: 4396729 (1983-08-01), Dominquez et al.
patent: 4433067 (1984-02-01), Rice et al.
patent: 4444910 (1984-04-01), Rice et al.
Kunststoff14 Handbuch, vol. 7, "Polyurethane" (1966), pp. 4-5.
Abstract of Japanese Publication 74018-640.

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