Thermoplastic molding material

Details Thermoplastic molding material Thermoplastic molding material

1993-10-18

1994-11-22

Jagannathan, Vasu S.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525279, 525281, 525289, 525293, 525303, 525308, 525309, 525310, 525316, C08F26504, C08F26506, C08F27902

Patent

active

053670299

ABSTRACT:
Particulate graft copolymers for matt thermoplastic molding materials contain a base and a graft sheath. The base contains 75 to 99.8% of at least one alkyl acrylate, from 0.1 to 5% of at least one polyfunctional, crosslinking monomer having at least two ethylenic double bonds which are not conjugated in the 1,3-position, and from 0.1 to 20% of at least one ethylenically unsaturated monomer having one or more acidic groups. Alternatively, the base may contain at least 50% of one or more dienes, up to 50% of at least one further ethylenically unsaturated monomer, and up to 15% of at least one ethylenically unsaturated monomer having one or more acidic groups. The sheath contains from 0 to 99.8% of at least one aromatic vinyl monomer, from 0 to 99.8% of at least one polar, copolymerizable, ethylenically unsaturated monomer, from 0.1 to 20% of at least one ethylenically unsaturated monomer having one or more basic groups, and from 0.1 to 10% of at least one hydroxyalkyl (meth)acrylate. All percentages are by weight.

REFERENCES:
patent: 3055859 (1962-09-01), Vollmert
patent: 4634734 (1987-01-01), Hambrecht et al.
patent: 4788253 (1988-11-01), Hambrecht et al.
patent: 5011871 (1991-04-01), Bueschl et al.
patent: 5120788 (1992-06-01), Seitz et al.
patent: 5252666 (1993-10-01), Seitz et al.

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