Congoleum Corporation

Other

Seevaram N Varadhachary

Claude J Schmidle

Joseph Boba

Vincent F Pogozelski

Harold Kwart

The invention relates to a resinous polymer sheet material having surface decorative effects of contrasting gloss and to the method of making the same. The material is made by applying to a base a printing composition layer forming a pattern with designated areas containing a photoinitiator and then applying to said printing composition layer a resinous polymer wear layer having therein an actinic radiation curable polymerizable and cross-linkable monomeric materials. The composite thus produced is exposed to actinic radiation so that the areas above where the photoinitiators were applied are cross-linked. The product is then heated to form the composition. The resulting product has a lower gloss in such areas as compared to the remainder of the surface of the sheet.

Resinous polymer sheet material having surface decorative effects of

A method of increasing the reaction rate of the polymerization and/or cross-linking of reactive polymerizable and/or cross-linkable acrylic monomeric materials initiated by dialkyl or diaralkyl peroxides as the free radical generator which comprises carrying out such a polymerization and/or cross-linking reaction in the presence of a member of the group consisting of stannous alkanoates, alkenoates, aralkanoates and aralkenoates, dialkyl tin dialkanoates, dialkenoates, diaralkanoates and diaralkenoates, or mixtures thereof in various proportions.

Accelerated polymerization of acrylic monomers initiated by dialkyl and

A method of improving the bond between dissimilar synthetic polymeric materials, such as, for example, a vinyl resin material and a polyurethane or acrylated polyurethane resin material which comprises: including in the vinyl resin material a chemical compound possessing hydroxy, carboxy, amido, amino, imino, mercapto, or like functions containing reactive hydrogen; providing free, available isocyanate in the polyurethane or acrylated polyurethane resin material; bringing the vinyl resin material and the polyurethane or acrylated polyurethane resin material into contact; and exposing the vinyl resin material and the polyurethane, or acrylated polyurethane resin material, while in contact, to curing conditions, whereby there is sufficient chemical inter-reaction between these resin materials as to create a strong and permanent primary chemical bond therebetween, in addition to any secondary bonds, such as hydrogen bonds and/or van der Waals forces. The present invention also relates to the products involved in and resulting from such methods.

Methods for bonding dissimilar synthetic polymeric materials and the

A method of improving the bond between dissimilar polymeric materials, such as, for example, a vinyl resin material and a polyurethane or acrylated polyurethane resin material, which comprises: including in the vinyl resin material an acrylate or an acrylated urethane; providing in the polyurethane or acrylated polyurethane resin material an organic peroxide or other UV or thermal activated free radical initiators; bringing the vinyl resin material and the polyurethane or acrylated polyurethane resin material into contact; and exposing the vinyl resin material and the polyurethane or acrylated polyurethane resin material, while in contact, to curing conditions in the presence of said organic peroxide or other UV or thermal activated free radical initiators, whereby there is sufficient chemical interreaction between these resin materials as to create a strong and permanent primary chemical bond therebetween, in addition to any secondary bonds, such as hydrogen bonds and/or van der Waals forces. The present invention also relates to the products involved in and resulting from such methods.

A method of improving the bond between dissimilar synthetic polymeric materials, such as, for example, a vinyl resin composition or material and a UV curable acrylated polyurethane resin composition or material which comprises: including in the vinyl resin material (1) at least one plasticizer for said vinyl resin, (2) an organic unsaturated chemical compound soluble or dispersible in said vinyl resin composition and of sufficiently low volatility as not to be driven off during heat processing of said synthetic polymeric materials, and (3) a free radical producer or reaction initiator; including in the UV curable acrylated polyurethane resin material a polythiol; bringing the vinyl resin material and the UV curable acrylated polyurethane resin material into contact; and exposing the vinyl resin material and the UV curable acrylated polyurethane material, while in contact, to curing conditions, whereby there is sufficient chemical inter-reaction between these dissimilar synthetic polymeric materials as to create a strong and permanent primary chemical bond therebetween, in addition to any secondary bonds, such as hydrogen bonds and/or attractive van der Waals forces. The present invention also relates to the products involved in and resulting from such methods.

A method of making a differential gloss product which comprises: forming a foamable base resinous plastisol on a substrate; gelling the base resinous plastisol; applying to the base resinous plastisol various printing ink compositions in a predetermined pattern, some portions of which contain a blowing inhibitor and a polymerization temperature-lowering promoter, either in the same or different portions; applying to the printed base resinous plastisol a resinous wear layer containing a polymerizable and/or cross-linkable monomeric material and a free radical polymerization catalyst; gelling the wear layer; mechanically dull mat embossing the entire surface of the wear layer at a temperature below the normal decomposition temperature of the catalyst but which is sufficient to decompose the catalyst in those portions of the wear layer lying directly over the polymerization temperature-lowering promoter present in some portions of the printed pattern, whereby the polymerizable monomeric material polymerizes to become cross-linked in some portions of the wear layer to permanently set the dull mat embossing thereon; and heating to a temperature sufficient to blow the foamable base resinous plastisol and to cause the dull mat embossing to flow into a smooth glossy surface in those other portions where the polymerizable monomeric material is not cross-linked and to decompose the catalyst in such other portions to bring about a cross-linking of the polymerizable monomeric material therein to permanently set the smooth, glossy surface of the wear layer in such other portions, whereby the wear is substantially completely polymerized and substantially completely monomer-free.

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Newtown, PA, United States of America

Seevaram N Varadhachary