Adhesive composition and method of use

Claim 2

An adhesive composition consisting essentially of a gelled mixture of: (1) a poly (lower alkyl) methacrylate, (2) a physiologically compatible liquid plasticizer, (3) an inert particulate filler, and (4) a chlorinated rubber.

Claim 3

An adhesive composition according to claim 1, wherein said poly (lower alkyl) methacrylate is polyethyl methacrylate.

Claim 4

An adhesive composition according to claim 2, where said poly (lower alkyl) methacrylate has a molecular weight in the range 50,000 to 1,000,000.

Claim 5

An adhesive composition according to claim 3, where said molecular weight is in the range 100,000 to 500,000.

Claim 6

An adhesive composition according to 1, where said plasticizer is a phthalate diester.

Claim 7

An adhesive composition according to 1, where said plasticizer is a phthalate diester.

Claim 8

An adhesive composition according to claim 5, where the alcoholic components of said phthalate diester are selected from alkanols of 1-8 carbon atoms optionally substituted by an alkoxycarbonyl reside, and aralkanols.

Claim 9

An adhesive composition according to claim 5, where said plasticizer is butyl phthalyl butyl glycollate.

Claim 10

An adhesive composition according to claim 5, where said plasticizer is butyl benzyl phthalate.

Claim 11

An adhesive composition according to claim 1, where said plasticizer is an N-(lower alkyl-substituted) arylsulfonamide.

Claim 12

An adhesive composition according to claim 9, where said plasticizer is N-ethyl-o,p-toluenesulfonamide.

Claim 13

An adhesive composition according to claim 1, where said inert particulate filler is colloidal silica.

Claim 14

An adhesive composition according to claim 1, where said chlorinated rubber is a highly chlorinated polyisoprene.

Claim 15

An adhesive composition according to claim 1, comprising, per 100 ml of plasticizer, 16-84 gm of poly (lower alkyl) methacrylate; 6-16 gm of said filler; and 16-67 gm of chlorinated rubber.

Claim 16

An adhesive composition according to claim 13 comprising, per 100 ml of plasticizer, 20-45 gm of poly (lower alkyl) methacrylate; 8-12 gm of said filler; and 20-40 gm of chlorinated rubber.

Claim 17

An adhesive composition according to claim 1, comprising polyethyl methacrylate; butyl phthalyl butyl glycollate as the plasticizer; colloidal silica as the filler; and a chlorinated polyisoprene.

Claim 18

An adhesive composition according to claim 1 consisting essentially of a gelled mixture of: (1) a physiologically compatible plasticizer comprising a diester of an aromatic dicarboxylic acid or an N-substituted arylsulfonamide; (2) from 16 to 84 gm, per 100 ml of plasticizer, of a poly (lower alkyl) methacrylate having a molecular weight in the range of from 50,000 to 1,000,000; (3) from 6 to 16 gm, per 100 ml of plasticizer, of an inert particulate filler selected from the group consisting of colloidal silica, finely divided calcium carbonate, diatomaceous earth, powdered barium glass, lithium aliminum silicates, and talcum; and (4) from 16 to 67 gm, per 100 ml of plasticizer, of highly chlorinated polyisoprene.

Claim 19

A dispersion of the composition of claim 1 in an organic solvent which dissolves all components of said composition except the filler.

Claim 20

The method of making the adhesive composition of claim 1, which comprises mixing the components of said composition and allowing the resultant paste to convert to a homogeneous gelled composition at an elevated temperature.

Claim 21

The method according to claim 18, where said elevated temperature is in the range 40-80° C.

Claim 22

The method according to claim 18, wherein said poly (lower alkyl) methacrylate has a particle size in the range 50-400 mesh (British Standard Sieve).

Claim 23

The method according to claim 18, where said paste is allowed to convert to a homogeneous composition in situ on a surface to be rendered adhesive.