Polyether amine modification of polypropylene
AssigneeHuntsman Petrochemical Corporation
InventorsRandall Keith Evans, Richard J. G. Dominguez, Richard J. Clark
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Abstract
A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyetheramine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts.
Claims34
A composition useful for making molded automotive body parts, comprising:
- polypropylene;
- an elastomer;
- and
- the reaction product of a functionalized polypropylene and a polyetheramine.
A composition useful for making molded automotive body parts, comprising:
- polypropylene;
- an elastomer;
- and
- the reaction product of maleated polypropylene and a polyetheramine.
A composition useful for making molded automotive body parts, comprising:
- polypropylene;
- ethylene/propylene rubber;
- and
- the reaction product of polyetheramine and maleated polypropylene.
An article of manufacture in the form of an automotive body part prepared by injection molding from a composition comprising:
- polypropylene;
- ethylene/propylene rubber;
- and
- the reaction product of maleated polypropylene and a polyetheramine.
A method of preparing a painted automotive body part, comprising:
- preparing a molded automotive body part by injection molding a blend comprising polypropylene, ethylene/propylene rubber and the reaction product of maleated polypropylene and a polyetheramine;
- and
- painting the molded automotive body part.
A process for the production of compositions useful for making automotive body parts, comprising:
- compounding polypropylene, maleated polypropylene and a polyetheramine in an extruder at a temperature of from about 175.degree. C. to about 300.degree. C., and under conditions such that the maleated propylene and polyetheramine form a reaction product, to form a compounded composition.
A blended composition useful for making molded articles of manufacture, comprising:
- polypropylene;
- a filler;
- the reaction product of maleated polypropylene and polyetheramine.
Dependencies are inferred from the claim text.