(METH)ACRYLIC OLIGOMERS
First Claim
1. (Meth)acrylic oligomers prepared from C1-C20 alkyl and C5-C20 cycloalkyl (meth)acrylates, wherein said oligomers have a Mn of from about 300 to about 3000 g/mole;
- a Mz of from about 900 to 10,000 g/mole; and
wherein the Yellowness Index, according to ASTM E313 is less than 2.
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Accused Products
Abstract
The invention provides (meth)acrylic oligomers prepared from C1-C20 alkyl and C5-C20 cycloalkyl (meth)acrylates, wherein said oligomers have a Mn of about 300 g/mole to about 3,000 g/mole; a Mw of about 700 g/mole to about 6,000 g/mole; a Mz of about 900 g/mole to about 10,000 g/mole. The oligomers may have a Yellowness Index, according to ASTM E313 of less than 2. The oligomers of the invention are useful as tackifiers in adhesive compositions, but also are believed to be useful also in general polymer modification as plasticizers, leveling agents, viscosity reducers (i.e., rheology modifiers), and for increasing solids content in solvent-borne applications of all types with little detrimental impact on viscosity. The invention also provides adhesive compositions and laminate articles coated on at least one side with the adhesive compositions of the invention.
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Citations
57 Claims
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1. (Meth)acrylic oligomers prepared from C1-C20 alkyl and C5-C20 cycloalkyl (meth)acrylates, wherein said oligomers have a Mn of from about 300 to about 3000 g/mole;
- a Mz of from about 900 to 10,000 g/mole; and
wherein the Yellowness Index, according to ASTM E313 is less than 2. - View Dependent Claims (2, 3, 4, 6, 8, 9, 10, 11, 16, 17, 55, 56, 57)
- a Mz of from about 900 to 10,000 g/mole; and
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5. (canceled)
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7. (canceled)
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12-15. -15. (canceled)
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18-37. -37. (canceled)
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38. (Meth)acrylic oligomers prepared from at least one type of monomer, wherein said monomer is selected from the group consisting of isobutyl (meth)acrylate, t-butyl (meth)acrylate, isobornyl (meth)acrylate, cyclohexyl (meth)acrylate, norbornyl (meth)acrylate, methyl (meth)acrylate, and combinations thereof, wherein said oligomers have a Mn molecular weight of from about 300 to about 3000;
- a Mz molecular weight of from about 900 to about 10,000; and
a Mw molecular weight of from about 700 to about 6000, and wherein said oligomers are hydrogenated to a residual olefin content, measured by 1H NMR, of less than 3.5 weight percent. - View Dependent Claims (40, 41, 43, 44, 45)
- a Mz molecular weight of from about 900 to about 10,000; and
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39. (canceled)
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42. (canceled)
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46-54. -54. (canceled)
Specification