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US 4,148,765 AGranted
Polyester resins containing dicyclopentadiene
AssigneeThe Dow Chemical Company
InventorDonald L. Nelson
Life of this patent
Estimating the term…
Abstract
Polyester resins are produced which are modified with C.sub.10 hydrocarbon concentrate. They are superior to the known resins containing the hydrocarbon concentrate in that the dicarboxylic acid or anhydrides used in the preparation of the resins are hydrolyzed with water before or during the reaction of the hydrocarbon concentrate with the other resinous monomers.
Claims8
The resin produced by reacting a mixture comprising
- (A) a reactant selected from the group consisting of
- (1) an alpha, beta ethylenically unsaturated dicarboxylic acid, anhydride thereof, or mixtures thereof,
- (2) a saturated polycarboxylic acid or the anhydride thereof,
- (3) mixtures of (1) and (2),
- (B) about 0.03 to about 10 moles water per mole of carboxylic acid or anhydride;
- (C) about 0.05 mole to about 1.0 mole of a C.sub.10 hydrocarbon concentrate per mole of carboxylic acid or anhydride, and
- (D) a polyol or an alkylene oxide, with the proviso that when (D) is an alkylene oxide of 2-4 carbons, (A) is at least 90% by weight of a dicarboxylic acid anhydride, and when (D) is a polyol and (A) is a polycarboxylic acid or anhydride, there is present 0-25% by weight based on the total weight of polycarboxylic acid or anhydride of
- (E) a monohydric alcohol having 3-18 carbon atoms,
- (F) a fatty acid or oil having up to 22 carbon atoms,
- (G) a monocarboxylic aromatic acid, or
- (H) mixtures of (E), (F) or (G).
8 more elements
The unsaturated polyester produced by reacting a mixture comprising
- (A) a reactant selected from the group consisting of
- (1) an alpha, beta ethylenically unsaturated dicarboxylic acid anhydride,
- (2) mixtures of (1) with 1-90% by weight of a saturated polycarboxylic acid or the anhydride thereof,
- (3) mixtures of (1) with a mixture of a saturated polycarboxylic acid and an anhydride of a saturated polycarboxylic acid,
- (B) about 0.03 to about 10 moles water per mole of carboxylic acid or anhydride,
- (C) about 0.05 mole to about 1.0 mole of a C.sub.10 hydrocarbon concentrate per mole of carboxylic acid anhydride, and
- (D) a polyol.
4 more elements
Dependencies are inferred from the claim text.