Process for the production of non-cellular molded articles

Details Process for the production of non-cellular molded articles Process for the production of non-cellular molded articles

1977-07-05

1982-03-02

Cockeram, H. S.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Forming plural articles

264 401, 264150, 264167, 264240, 264255, 521902, B29C 500, C08G 1808

Patent

active

043177913

ABSTRACT:
A process is described for the successive production of at least two non-cellular molded articles differing in their mechanical properties. Both articles are based on organic polyisocyanates which are trimerized in the presence of compounds which are reactive with isocyanate groups where the equivalent ratio of NCO groups to groups reactive with NCO groups is varied within the range of 1:0.8 to 1:0. In a second embodiment, a uniform article is produced having anisotropic mechanical characteristics varying continuously and/or stepwise.

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BiKales, Molding of Plastics (Encyclopedia Reprints) Wiley-Interscience (N.Y.) 1971, pp. 188, 192-194.
DOS 2,014,899-ICI, Jan. 16, 1970.

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