Stress-resistant extrudates

An article at least partially covered with a coating composition comprising:

• a) about 64.5% by weight of a thermoplastic component comprising from about 15% to about 35% by weight of a PETG copolyester, and about 29.5% to about 49.5% by weight of a poly(styrene acrylonitrile) (SAN) copolymer, wherein the combined weight percentage of the PETG copolyester and the SAN copolymer in the composition is about 64.5%, and
• b) about 20% by weight of an elongation modifier consisting of a chlorinated polyethylene having a heat of fusion of 1 J/g or less;
• and
• c) about 12% by weight of a filler, and
• d) about 3.5% by weight of one or more components selected from the group consisting of a second elongation modifier, a lubricant, a stabilizer, an antioxidant, a UV absorber, an opacity modifier, an impact modifier and a tint;
• said composition having a percent elongation to break of at least 131% and not above about 300%,
• wherein said at least partially coated article is selected from the group consisting of a door jamb, a window jamb, door trim, window trim, a decking component, shelving parts, horizontal blinds, indoor shutter parts, a pulltrusion article, interior molding, exterior molding, interior trim, exterior trim, exterior siding and interior siding, said article having enhanced resistance to moisture and/or temperature mediated cracking relative to an otherwise identical article made using an otherwise identical coating composition in which the elongation modifier component is omitted and substituted with PETG.

An extrudable thermoplastic composition comprising:

• a) about 64.5% by weight of a thermoplastic component comprising about 35% of a PETG copolyester and about 29.5% of a poly(styrene acrylonitrile) (SAN) copolymer, and
• b) about 20% by weight of an elongation modifier consisting of a chlorinated polyethylene having a heat of fusion of about 1 J/g or less,
• c) about 12% by weight of a filler, and
• d) about 3.5% by weight of one or more components selected from the group consisting of a second elongation modifier, a lubricant, a stabilizer, an antioxidant, a UV absorber, an opacity modifier, an impact modifier and a tint the composition having a percent elongation to break between 131% and 300%, the composition being extrudable as a coating composition in an article having enhanced resistance to moisture and/or temperature mediated cracking relative to an otherwise identical article made using an otherwise identical coating composition in which the elongation modifier component is omitted and substituted with PETG.

An extrudable thermoplastic composition comprising:

• i) about 29.5% of a poly(styrene acrylonitrile) (SAN) polymer;
• ii) about 35% by weight of a PETG copolyester, and
• iii) about 20% by weight of an elongation modifier component consisting of comprising a chlorinated polyethylene having a heat of fusion of 1 J/g or less,
• iv) about 12% by weight of a filler, and
• v) about 3.5% by weight of one or more components selected from the group consisting of a second elongation modifier, a lubricant, a stabilizer, an antioxidant, a UV absorber, an opacity modifier, an impact modifier and a tint;
• the composition having a percent elongation to break of at least 131% and not above about 300%, the composition being extrudable into an article selected from the group consisting of a door jamb, a window jamb, door trim, window trim, a decking component, shelving parts, a pull-trusion article, interior molding, exterior molding, interior trim, exterior trim, exterior siding and interior siding, said article having enhanced resistance to moisture and/or temperature mediated cracking relative to an otherwise identical article made using an otherwise identical composition in which the elongation modifier component is omitted and substituted with PETG.