Method of promoting adhesion to keratinaceous surface, use of same in reshaping surface, and kit therefor
First Claim
1. A method for improving adhesion of a synthetic monomeric or polymeric material to a keratinaceous substrate comprising alpha-keratin, comprising the step of:
- applying to said keratinaceous substrate an adhesion-promoting composition comprising (A) an organic, dipolar, aprotic liquid carrier and, uniformly distributed throughout said organic, dipolar, aprotic liquid carrier, (B) pyromellitic dianhydride glycerol dimethacrylate adduct.
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Accused Products
Abstract
A method for improving--with an adhesion-promoting composition--adhesion of a synthetic monomeric or polymeric material (such as a curable acrylic monomer/polymerized acrylic system) to a keratinaceous substrate, as in, for example, the reshaping of fingernails or toenails. The adhesion-promoting composition comprises (A) an organic, dipolar, aprotic liquid carrier and, uniformly distributed throughout said liquid carrier, (B) pyromellitic dianhydride glycerol dimethacrylate adduct ("PMGDM"). The PMGDM isomer mixture which typically results when pyromellitic dianhydride is reacted with glycerol dimethacrylate is preferred, particularly in view of its high solubility in solvents of relatively low toxicity (e.g. lower aliphatic ketones). The adhesion-promoting composition can, if desired, be included in a nail-reshaping kit containing the materials and implements needed to reshape the nail plate.
35 Citations
16 Claims
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1. A method for improving adhesion of a synthetic monomeric or polymeric material to a keratinaceous substrate comprising alpha-keratin, comprising the step of:
- applying to said keratinaceous substrate an adhesion-promoting composition comprising (A) an organic, dipolar, aprotic liquid carrier and, uniformly distributed throughout said organic, dipolar, aprotic liquid carrier, (B) pyromellitic dianhydride glycerol dimethacrylate adduct.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15, 16)
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9. A method for reshaping a nail plate with an acrylic monomer, an acrylic polymer, or a combination of acrylic monomer and acrylic polymer, comprising:
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a. applying to the nail plate an adhesion-promoting composition comprising (A) an organic, dipolar, aprotic liquid carrier and (B) a plurality of isomers of pyromellitic dianhydride glycerol dimethacrylate adduct, until at least a portion of said nail plate is provided with an adhesion-promoting film, b. permitting at least a portion of said organic, dipolar, aprotic liquid carrier of said adhesion-promoting film to evaporate under normal ambient conditions, and c. applying a free-radical polymerizable acrylic monomer or a solid, polymerized acrylic ester or a combination of said free-radical polymerizable acrylic monomer and said solid, polymerized acrylic ester to said adhesion-promoting film. - View Dependent Claims (10, 11, 12)
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13. A kit for the reshaping of a nail plate, comprising:
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i. an applicator for applying materials to a nail plate, ii. an adhesion-promoting composition comprising an organic, dipolar, aprotic liquid carrier, and, uniformly distributed therethrough, pyromellitic dianhydride glycerol dimethacrylate adduct, iii. a liquid acrylic monomer containing a free-radical initiation catalyst, iv. a particulate solid acrylic polymer containing a free-radical initiation co-catalyst. - View Dependent Claims (14)
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Specification