Unplasticized polyvinyl chloride-based molding composition, proc

Details Unplasticized polyvinyl chloride-based molding composition, proc Unplasticized polyvinyl chloride-based molding composition, proc

1990-08-23

1992-06-23

Bleutge, John C.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

2641761, 2642972, 524 99, 524400, 524357, 524433, 524504, 524425, 524451, C08L 2706, C08K 320, C08K 505

Patent

active

051243733

ABSTRACT:
The present invention relates to a polyvinyl chloride- based unplasticized molding composition which includes vinyl chloride homo-, co- and/or ter-polymer and/or mixtures or alloys thereof having a vinyl chloride or PVC content of more than 70% by weight, preferably more than 85% by weight, and 15 to 0% by weight of at least one impact-modifying polymer, which unplasticized molding composition includes, per 100 parts by weight of the PVC mixture if appropriate, pigments, colorants, lubricants, blowing agents, flame retardants, fillers, reinforcing fibers or other processing auxiliaries and the following additives:

REFERENCES:
patent: 3471439 (1969-10-01), Bixler et al.
patent: 3969313 (1976-07-01), Aishima et al.
patent: 4146517 (1979-03-01), Leistner et al.
patent: 4353997 (1982-10-01), Keogh
patent: 4719023 (1988-01-01), Mac Phail et al.
Chemical Abstracts vol. 91, 1979 p. 36; 91:176236z "Rigid compositions based on vinyl chloride polymers heat stabilized using magnesium oxide and a polyalcohol".

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