Plasticizer resisant hot melt pressure sensitive adhesive

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

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525 64, 525 70, 525 84, 525 85, 525 95, 525 99, 525191, 525193, 525302, 525306, 525307, 525308, 525309, 525310, 525902, 526935, 524504, 524505, 523201, C09J15104, C09J15302, C08L 5104

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active

052624790

ABSTRACT:
Improved plasticizer resistant pressure sensitive hot melt adhesive compositions are prepared by incorporating in the adhesive polymer, tackifying resin and oil 5 to 70% by weight of the adhesive of a core shell modifier comprising a crosslinked rubbery core and a glassy thermoplastic polymer shell, the core being crosslinked by the presence therein of up to 5% by weight of a polyunsaturated monomer having two or more non-conjugated sites of unsaturation of unequal reactivity.

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Graziano, L. C. and Sjostrand, "Development of Acrylic Latex Pressure Sensitive Adhesive for Plasticized PVC Films", Journal of Plastic Film & Sheeting, vol. 2-Apr. 1986, pp. 95-110.
Technical Bulletin, "Pellet Grade Summary", Paraloid.RTM.EXL.RTM..
"Effect of Plasticizer Migration", SATAS, Handbook of PSA, 2nd Edition, 1989, pp. 429-430.
"Urethane Reactive Hot Melts", Davis, Irwin J., Presented at Adhesives & Sealants Council Meeting, Philadelphia, Pa., Apr. 1, 1987, National Starch and Chemical Corporation.

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