Process of making molded products

Details Process of making molded products Process of making molded products

1995-01-27

1996-07-23

Tentoni, Leo B.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264 41, 264 451, 264122, 264126, 264248, 264308, 264321, C08G 1865, C08J 500

Patent

active

055386792

ABSTRACT:
The invention relates to a process for the preparation of single-layered or multilayered molded articles from particles of polyisocyanate-polyaddition products by shaping a specified mixtures under heat and pressure. The mixture contains quasi-thermoplastic particles of polyisocyanate-polyaddition products and one or more processing aids.

REFERENCES:
patent: 3354251 (1967-11-01), Thoma et al.
patent: 3794621 (1974-02-01), Meckel et al.
patent: 4065410 (1977-12-01), Schafer et al.
patent: 4261946 (1981-04-01), Goyert et al.
patent: 5009950 (1991-04-01), Wagner et al.
patent: 5064600 (1991-11-01), Wagner et al.
patent: 5154871 (1992-10-01), Wagner et al.
Macosko, C. W. Fundamentals of Reaction Injection Molding. New York, 1989, pp. 1-72.
Becker/Braun, Kunststoffhandbuch, vol. 7, 1983, pp. 405-417.

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