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US 2007/0179250 A1Published application
Laminating resin with reduced styrene monomer
AssigneeReichhold, Inc.
InventorsLianzhou Chen, Hildeberto Nava
Life of this patent
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Abstract
A laminating resin having low styrene content is provided. The resin includes a thermosetting resin and a reactive intermediate including a low molecular weight polyester oligomer endcapped with at least one (meth)acrylic acid, its ester or its anhydride thereof.
Claims22
A laminating resin having low styrene content, said resin comprising:
- a) a thermosetting resin;
- and
- b) a reactive intermediate comprising a low molecular weight polyester oligomer endcapped with at least one (meth)acrylic acid, its ester or its anhydride thereof.
A laminating resin devoid of styrene, said resin comprising:
- a) a thermosetting resin selected from the group consisting of saturated and unsaturated polyesters, urethanes and vinyl esters, said thermosetting resin blended with;
- b) a reactive intermediate comprising a polyester oligomer formed by (i) esterifying or trans-esterifying a saturated or unsaturated polyester with at least one polyhydric alcohol, wherein said polyester oligomer has a molecular weight range of 200 to 1500 and the ratio of polyester to polyhydric alcohol is a range of 1:1.2 to 1:1.5, and (ii) further esterifying or trans-esterifying with at least one (meth)acrylic acid, its ester or anhydride thereof.
A laminating resin comprising:
- 1 to 99 percent by weight of a thermosetting resin;
- 1-99 percent by weight of a reactive intermediate comprising a low molecular weight polyester oligomer endcapped with at least one (meth)acrylic acid, its ester or its anhydride;
- 1-60 percent by weight of a filler;
- 0-40 percent by weight of a vinyl aromatic monomer;
- 0-40 percent by weight of a polyfunctional acrylate;
- and
- 0-50 percent by weight of a low profile additive.
4 more elements
Dependencies are inferred from the claim text.