Polyester plasticizers
First Claim
1. A compound, having the formula
in which A is the residue of one or more saturated straight or branched chain monohydric alcohols containing from 1 to 20 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, tetrahydrophthalic acid, tetrahydrophthalic 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, or with 1 to 4 chlorine or bromine atoms, L is the residue of one or more saturated hydroxy acids containing from 4 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 ratio of the number of moles of alcohol to the number of moles of diol being from 2.2 to 0.93 such that the average molecular weight is from 500 to 1400, which is prepared by reacting in one-step a mixture of the following components (a) from 10 to 90 mole % of lactone or hydroxy acid containing from 4 to 12 carbon atoms (b) from 22 to 2 mole % of a hydroxylic component which comprises one or more saturated straight or branched chain aliphatic diols containing from 2 to 6 carbon atoms c) from 33 to 12 mole % of an acidic component which comprises one or more acids or anhydrides selected from the group consisting of o-phthalic acid, phthalic anhydride, isophthalic acid, tetrahydrophthalic acid, tetrahydrophthalic 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, or with 1 to 4 chlorine or bromine atoms, and d) one or more saturated straight or branched chain monohydric alcohols containing from 1 to 20 carbon atoms such that the hydroxylic components are used in stoichiometric amounts or up to 15% excess over the stoichiometric amounts related to the acidic components.
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Accused Products
Abstract
Polyesters having an average molecular weight from 500 to 1400, containing dicarboxylic acid-, aliphatic diol- and hydroxy acid or lactone residues and which are endstopped by monohydric alcohols are useful plasticizers for example for PVC.
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Citations
14 Claims
- 1. A compound, having the formula
- space="preserve" listing-type="equation">A(P).sub.a (D).sub.b (L).sub.c A (I)
in which A is the residue of one or more saturated straight or branched chain monohydric alcohols containing from 1 to 20 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, tetrahydrophthalic acid, tetrahydrophthalic 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, or with 1 to 4 chlorine or bromine atoms, L is the residue of one or more saturated hydroxy acids containing from 4 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 ratio of the number of moles of alcohol to the number of moles of diol being from 2.2 to 0.93 such that the average molecular weight is from 500 to 1400, which is prepared by reacting in one-step a mixture of the following components (a) from 10 to 90 mole % of lactone or hydroxy acid containing from 4 to 12 carbon atoms (b) from 22 to 2 mole % of a hydroxylic component which comprises one or more saturated straight or branched chain aliphatic diols containing from 2 to 6 carbon atoms c) from 33 to 12 mole % of an acidic component which comprises one or more acids or anhydrides selected from the group consisting of o-phthalic acid, phthalic anhydride, isophthalic acid, tetrahydrophthalic acid, tetrahydrophthalic 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, or with 1 to 4 chlorine or bromine atoms, and d) one or more saturated straight or branched chain monohydric alcohols containing from 1 to 20 carbon atoms such that the hydroxylic components are used in stoichiometric amounts or up to 15% 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 NumberUS05/767,601Time in Patent Office677 DaysField of Search260/31.6, 260/475 P, 560/90US Class Current524/296CPC Class CodesC08G 63/60 derived from the reaction o...C08L 2666/04 Macromolecular compounds ac...C08L 2666/14 Macromolecular compounds ac...C08L 27/06 Homopolymers or copolymers ...C08L 57/00 Compositions of unspecified...C08L 67/00 Compositions of polyesters ...
