Monobenzoate analogs useful as plasticizers in plastisol compositions
First Claim
1. A plastisol composition comprising polymer particles dispersed in a plasticizer, wherein the plasticizer for dispersing the polymer particles consists of 2-methyl-3-phenylpropyl benzoate, 2-phenylethyl 2-phenylacetate, benzyl 3-phenylpropanoate, or benzyl 2-methyl-3-phenylpropanoatepresent in amounts ranging from about 20 parts to about 80 parts per 100 parts by weight of the polymer particles, wherein the plasticizer maintains viscosity stability over time.
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Abstract
Unique 3-PPB monobenzoate analogs useful as plasticizers in polymeric dispersions, such as plastisols, melt compounds, and adhesives among other applications. The analogs are structurally similar to and/or derived from 3-phenylpropyl benzoate and heretofore were not known for use in industrial applications, particularly not as a plasticizer in polymeric applications. Depending on the application, the advantages rendered by the use of the inventive monobenzoate analogs include, among other things, excellent solvating properties and rheology, low viscosity and significantly improved viscosity over time, comparable or improved Tg suppression, set and open times, as well as health, safety and environmental advantages, over traditional plasticizers.
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Citations
8 Claims
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1. A plastisol composition comprising polymer particles dispersed in a plasticizer, wherein the plasticizer for dispersing the polymer particles consists of 2-methyl-3-phenylpropyl benzoate, 2-phenylethyl 2-phenylacetate, benzyl 3-phenylpropanoate, or benzyl 2-methyl-3-phenylpropanoate
present in amounts ranging from about 20 parts to about 80 parts per 100 parts by weight of the polymer particles, wherein the plasticizer maintains viscosity stability over time.
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5. A plastisol composition comprising:
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polymer particles dispersed in a plasticizer, wherein the polymer comprises polyvinyl chloride, a polyvinyl chloride copolymer or an acrylic-based polymer; wherein the plasticizer for dispersing the polymer particles consists of 2-methyl-3-phenylpropyl benzoate, 2-phenylethyl 2-phenylacetate, benzyl 3-phenylpropanoate, or benzyl 2-methyl-3-phenyl-propanoate, present in amounts ranging from about 20 parts to about 80 parts per 100 parts by weight of the polymer, wherein the plasticizer is used alone as a primary plasticizer or as a secondary plasticizer in combination with other plasticizers, and wherein the plasticizer maintains viscosity stability over time. - View Dependent Claims (6, 7)
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8. An adhesive composition comprising:
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a. a polymeric emulsion comprising polyvinyl acetate or vinyl acetate ethylene; and b. a plasticizer selected from the group consisting of 2-methyl-3-phenylpropyl benzoate, 2-phenylethyl 2-phenylacetate, benzyl 3-phenylpropanoate or benzyl 2-methyl-3-phenylpropanoate, present in amounts ranging from about 1 to about 20%, wet.
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Specification