Polyester plasticizers
First Claim
1. A compound having the formula
in which M is the residue of one or more aliphatic monocarboxylic acids containing from 4 to 18 carbon atoms, P is the residue of one or more saturated straight or branched chain aliphatic diols containing from 2 to 6 carbon atoms, D is the residue of one or more acids or anhydrides selected from the group consisting of o-phthalic acid, phthalic anhydride, isophthalic acid, hexahydrophthalic acid, hexahydrophthalic anhydride and any of the aforementioned acids or anhydrides substituted with 1 to 4 alkyl groups, said alkyl groups containing 1 to 4 carbon atoms, L is the residue of one or more saturated hydroxy acids containing from 6 to 12 carbon atoms, each of the residues being joined together by ester linkages, residues, P, D and L being distributed at random throughout the molecule, a, b and c each having a value greater than 0, the amount of residue of hydroxy acid being from 10 mole % to 90 mole % based on the total number of moles of reactants and the molar ratios of the remaining reactants being chosen so that the average molecular weight of the product is from 500 to 1400, which is prepared by reacting in one step a mixture of the following components (a) from 10 to 90 mol % of lactone or hydroxy acid containing from 6 to 12 carbon atoms, (b) a hydroxylic component which comprises one or more saturated straight or branched chain aliphatic diols containing from 2 to 6 carbon atoms, (c) an acidic component which comprises one or more acids or anhydrides selected from the group consisting of o-phthalic acid, phthalic anhydride, isophthalic acid, hexahydrophthalic acid, hexahydrophthalic anhydride and any of the aforementioned acids or anhydrides substituted with 1 to 4 alkyl groups, said alkyl groups containing 1 to 4 carbon atoms, and (d) one or more aliphatic monocarboxylic acids containing from 4 to 18 carbon atoms, such that the hydroxylic component is used in stoichiometric amounts or up to 20% excess over the stoichiometric amounts related to the acidic components.
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0 Petitions
Accused Products
Abstract
A random polyester containing residues of aliphatic diols, aromatic dicarboxylic acids and hydroxyacids and being endstopped by monocarboxylic acids are useful plasticizers especially for polyvinyl chloride polymers.
8 Citations
14 Claims
- 1. A compound having the formula
- space="preserve" listing-type="equation">M(P).sub.a (D).sub.b (L).sub.c M (I)
in which M is the residue of one or more aliphatic monocarboxylic acids containing from 4 to 18 carbon atoms, P is the residue of one or more saturated straight or branched chain aliphatic diols containing from 2 to 6 carbon atoms, D is the residue of one or more acids or anhydrides selected from the group consisting of o-phthalic acid, phthalic anhydride, isophthalic acid, hexahydrophthalic acid, hexahydrophthalic anhydride and any of the aforementioned acids or anhydrides substituted with 1 to 4 alkyl groups, said alkyl groups containing 1 to 4 carbon atoms, L is the residue of one or more saturated hydroxy acids containing from 6 to 12 carbon atoms, each of the residues being joined together by ester linkages, residues, P, D and L being distributed at random throughout the molecule, a, b and c each having a value greater than 0, the amount of residue of hydroxy acid being from 10 mole % to 90 mole % based on the total number of moles of reactants and the molar ratios of the remaining reactants being chosen so that the average molecular weight of the product is from 500 to 1400, which is prepared by reacting in one step a mixture of the following components (a) from 10 to 90 mol % of lactone or hydroxy acid containing from 6 to 12 carbon atoms, (b) a hydroxylic component which comprises one or more saturated straight or branched chain aliphatic diols containing from 2 to 6 carbon atoms, (c) an acidic component which comprises one or more acids or anhydrides selected from the group consisting of o-phthalic acid, phthalic anhydride, isophthalic acid, hexahydrophthalic acid, hexahydrophthalic anhydride and any of the aforementioned acids or anhydrides substituted with 1 to 4 alkyl groups, said alkyl groups containing 1 to 4 carbon atoms, and (d) one or more aliphatic monocarboxylic acids containing from 4 to 18 carbon atoms, such that the hydroxylic component is used in stoichiometric amounts or up to 20% excess over the stoichiometric amounts related to the acidic components. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
Specification
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- Resources
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Current AssigneeFMC Corporation
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Original AssigneeCiba-Geigy AG (Novartis Ag)
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InventorsLamb, Frank
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Primary Examiner(s)Lieberman, Allan
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Application NumberUS05/732,627Time in Patent Office809 DaysField of Search260/32.6, 260/475 P, 260/404.8, 560/90US Class Current524/296CPC Class CodesC08G 63/20 Polyesters having been prep...C08G 63/60 derived from the reaction o...C08L 2666/14 Macromolecular compounds ac...C08L 27/06 Homopolymers or copolymers ...C08L 67/00 Compositions of polyesters ...
