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Patent

Photoactive mixture of acrylic monomers and chromophore-substituted halomethyl-triazine

George F. Vesley
TLDR
In this paper, a photopolymerizable mixture of acrylic monomer such as 95 parts of an alkyl acrylate and 5 parts of acrylic acid and 0.01 to 2 parts by weight of a chromophore-substituted-halomethyl-s-triazine is presented.
Abstract: 
Photopolymerizable mixture of (a) acrylic monomer such as 95 parts of an alkyl acrylate and 5 parts of acrylic acid and (b) 0.01 to 2 parts by weight of a chromophore-substituted-halomethyl-s-triazine. The invention differs from the prior art in that the s-triazine has the formula (FORMULA) wherein R1, R2, R3 and R4 are independently hydrogen, alkyl or alkoxy groups, and 1 to 3 of R1, R2, R3 and R4 are hydrogen. This s-triazine can be made by a more simple and hence more economical process than can the s-triazine of the prior art, tends to provide desirably shortened reaction times and somewhat greater tolerance to oxygen, and avoids the yellowish color encountered in the prior art. The novel photopolymerizable mixture is primarily useful for making pressure-sensitive adhesive tapes.

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Patent

Methods of making packaged viscoelastic compositions

Craig E. Hamer, +2 more
TL;DR: In this paper, a pre-viscoelastic composition (e.g., hot melt adhesives) is combined with a packaging material and then polymerized by transmissive energy.
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Near-infrared-polymerizable composition

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TL;DR: In this article, the authors presented a near infrared polymerizable composition comprising a cyanine dye, a S-triazine compound, an organoboron salt and an ethylenically unsaturated compound.
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Adhesive compositions and methods of use

Gregory L. Bluem, +3 more
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References
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Patent

Acrylic-type pressure sensitive adhesives by means of ultraviolet radiation curing

John A. Martens, +2 more
TL;DR: In this article, the authors present a process for the preparation of a normally tacky pressure-sensitive adhesive which comprises subjecting a solventless radiation-sensitive acrylate-containing polymerizable mass to radiation in the near UV region, at a rate of from about 0.1 to 7 milliwatts per square centimeter of the mass exposed.
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Photosolubilizable compositions and elements

George H Smith, +1 more
TL;DR: In this article, photosolubilizable compositions and their preparation are described, which include a water-insoluble compound containing one or more acid-degradable groups, and a photoinitiator comprising a photolyzable acid progenitor.
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Pressure-sensitive adhesive tape produced from photoactive mixture of acrylic monomers and polynuclear-chromo phore-substituted halomethyl-s-triazine.

George F. Vesley, +1 more
TL;DR: The s-triazine has the formula (FORMULA) wherein each of R1 and R2 is hydrogen, alkyl, or alkoxy as mentioned in this paper and can be made by a more simple and hence more economical process than can the s-Triazine of the prior art, tends to provide desirably shortened reaction time and somewhat greater tolerances to oxygen.
Patent

Radiation-sensitive copying composition

Gerhard Dr Buhr, +2 more
TL;DR: In this paper, a radiation sensitive composition which comprises, as the radiation sensitive compound, an s-triazine corresponding to Formula I ##STR1## wherein X is bromine or chlorine, and m and n are whole numbers from 0 to 3 which, taken together, do not exceed 5, and in which R is a substituted or unsubstituted bi- or polynuclear aromatic or heterocyclic group which may be partially hydrogenated and which is linked via an unsaturated nuclear carbon atom.
Patent

Chromophore-substituted vinyl-halomethyl-s-triazines

James A. Bonham, +1 more
TL;DR: Chromophore-substituted vinyl-halomethyl-s-triazine compounds are provided capable of free-radical generation upon excitation with radiation having a wavelength of from about 330 to about 700 millimicrons as discussed by the authors.