Main > PHARMA. > Drug Delivery > TransDermal Delivery > Adhesive > Poly(Isobutene) > Water-Swellable Polymer. Pectin.

Product USA. B

PATENT ASSIGNEE'S COUNTRY USA
UPDATE 08.00
PATENT ASSIGNEE Bristol-Myers Squibb
PATENT CLAIMS Adhesive compn for use in skin applications
(A) Poly(Isobutene) (20-60 parts)
(B) Water-swellable polymer (20-80 parts) selected from (i) mixt of methacrylic acid, n-vi
nyl 1-2 pyrrolidone & styrene etc
(B) Water-soluble polymer (< 30 parts) selected from pectin etc
Wherein when said compn is exposed to 36C & 100% rel. humidity for 8 days it absorbs > 25% of water & retains > 50% of its tensile force
PATENT PHOTOCOPY Available on request

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