Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
162 words
A process for preparing a flexible, transparent, cohesive and adhesive coating on a substrate, comprising the steps of: (a) forming a mixture of up to about 15% by weight of a polycyclic monomer selected from the group consisting of a spiroorthocarbonate and a spiroorthoester with a combination of a di-epoxy oligomer and a lactone in a ratio of from about 1:2.5 to about 1:4.5 by weight of the oligomer; (b) adding a Lewis acid catalyst (c) adding an aryl cationic photocatalyst to the mixture which releases a radical carbonium ion upon irradiation with broad wavelength ultra-violet light, and initiates polymerization of the oligomer; (d) coating the mixture on the substrate; (e) exposing the coated substrate to broad wavelength ultra-violet light for from about 2 to 20 seconds to initiate polymerization of the oligomer; and (f) completing polymerization to form the transparent, cohesive, and adhesive coating on the substrate by heating the ultraviolet light exposed substrate at between about 50° and 125° C.
Claim 2
Dependent Claim
162 words
A process for preparing a flexible, transparent, cohesive and adhesive coating on a substrate, comprising the steps of: (a) forming a mixture of up to about 15% by weight of a polycyclic monomer selected from the group consisting of a spiroorthocarbonate and a spiroorthoester with a combination of a di-epoxy oligomer and a lactone in a ratio of from about 1:2.5 to about 1:4.5 by weight of the oligomer; (b) adding a Lewis acid catalyst (c) adding an aryl cationic photocatalyst to the mixture which releases a radical carbonium ion upon irradiation with broad wavelength ultra-violet light, and initiates polymerization of the oligomer; (d) coating the mixture on the substrate; (e) exposing the coated substrate to broad wavelength ultra-violet light for from about 2 to 20 seconds to initiate polymerization of the oligomer; and (f) completing polymerization to form the transparent, cohesive, and adhesive coating on the substrate by heating the ultraviolet light exposed substrate at between about 50° and 125° C.
Claim 3
Dependent Claim
19 words
A process as in claim 1 wherein a flow-aid is added to the mixture before coating on the substrate.
Claim 4
Dependent Claim
22 words
A process as claimed in claim 1 in which the monomer is a polycyclic ring system, the rings being opened during polymerization.
Claim 5
Dependent Claim
14 words
A process as in claim 1, wherein the diepoxy oligomer is a diglycidyl ether.
Claim 6
Dependent Claim
17 words
A process as in claim 1, wherein the catalyst for the monomer is a Lewis acid-amine complex.
Claim 7
Dependent Claim
18 words
A process as in claim 5, wherein the catalyst is a complex of boron trichloride with N,N'-dimethyl piperazine.
Claim 8
Dependent Claim
13 words
A process in claim 1 wherein the diepoxy oligomer is Bisphenol-A diglycidyl ether.
Claim 9
Dependent Claim
29 words
A process as in claims 1 or 7, wherein the catalyst for the oligomer is a photocatalyst selected from the group consisting of triarylsulfonium hexafluoro antimonate, arsenate, and phosphate.
Claim 10
Dependent Claim
24 words
A process as in claim 1 wherein the monomer spiroorthoester is formed in situ by the reaction of a lactone with a diepoxy oligomer.
Claim 11
Dependent Claim
11 words
A process as in claim 9 wherein the lactone is γ-butyrolactone.
Claim 12
Dependent Claim
11 words
A process as in claim 9 wherein the lactone is ε-caprolactone.
Claim 13
Dependent Claim
14 words
A process as in claim 1, in which the spiroorthocarbonate monomer is norbornene spiroorthocarbonate.
Claim 14
Dependent Claim
50 words
A smooth, flexible, transparent, adherent, corrosion and abrasion-resistant coating on a substrate, said coating consisting essentially of copolymerized diepoxide oligomer and a ring-opening polycyclic monomer selected from the group consisting of a spiroorthocarbonate and a spiroorthoester, and said coating being obtained in accordance with the process defined in claim 1.