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LED curing of radiation curable floor coatings
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A radiation curing and flooring technology, applied in polyester coatings, epoxy resin coatings, polyurea/polyurethane coatings, etc., can solve problems such as infeasibility, cured film properties that cannot meet performance requirements, and coatings that cannot be cured quickly
Inactive Publication Date: 2012-08-29
DSM IP ASSETS BV
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Problems solved by technology
While currently available "conventional cure" UV-curable floor coatings do begin to cure when exposed to light from an LED light source, the cure rate is too slow and as a result the coatings do not cure quickly enough to be commercially viable
The properties of the final cured film also do not meet performance requirements due to current formulation deficiencies
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Embodiment A
[0173] Reformulation of Concrete Floor Coatings Cured Using LEDs
[0174]
[0175] LED lights with the settings listed below were used for concrete paint.
[0176] Model: Phoseon 75x50WC 395, RX FireFlex, Water Cooled LED, S / N: 585001
[0177] Speed: 27ft / min.
[0178] LED output power: through EIT Power Puck, S / N: 2692, UVB-UVC=0, UVA=0.499w / cm 2 and 0.136J / cm 2 . Use DC Power Puck UVV>5.000w / cm 2 and>01.584J / cm 2 The UVV test is saturated.
Embodiment B
[0180] Reformulation of Concrete Floor Coatings Cured Using LEDs
[0183] LED lights with the settings listed below were used for concrete paint.
[0184] Model: Phoseon 75x50WC 395, RX FireFlex, Water Cooled LED, S / N: 585001
[0185] Speed: 27ft / min.
[0186] LED output power: through EIT Power Puck, S / N: 2692, UVB=UVC=0, UVA=0.499w / cm 2 and 0.136J / cm2 . Use DC Power Puck UVV>5.000w / cm 2 and>01.584J / cm 2 The UVV test is saturated.
Embodiment C
[0188] Reformulation of Concrete Floor Coatings Cured Using LEDs, Clear Coating Systems
[0189]
[0190] LED lights with the settings listed below were used for concrete paint.
[0191] Model: Phoseon 75x50WC 395, RX FireFlex, Water Cooled LED, S / N: 585001
[0192] Speed: 27ft / min.
[0193] LED output power: through EIT Power Puck, S / N: 2692, UVB=UVC=0, UVA=0.499w / cm 2 and 0.136J / cm 2 . Use DC Power Puck UVV>5.000w / cm 2 and>01.584J / cm 2 The UVV test is saturated.
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Abstract
A radiation curable coating for a floor comprising: at least one radiation curable oligomer, at least one photoinitiator and at least one reactive diluentmonomer, said radiation curable oligomer being selected from the group consisting of Urethane (meth)acrylates, epoxy (meth)acrylates, polyester (meth)acrylates, acrylic (meth)acrylates, and hydrocarbon (meth)acrylates is described and claimed. The composition is capable of undergoing photopolymerization when coated on a floor and when irradiated by a light emitting diode (LED) light, having a wavelength from about 100 nm to about 900 nm, to provide a cured coating on the floor, with the cured coating having an external surface, and the cured coating having a Percent Reacted Acrylate Unsaturation (%RAU) at the external surface of about 60% or greater. Also described and claimed are the process to coat a floor with the LED curable coating for floor and a coated floor where the coating has been cured by application of LED light.
Description
[0001] Applicant: DSM Intellectual Property Asset Management Co., Ltd. [0002] No. 1, Haite Owolong Street, 6411TE, Heerlen, The Netherlands [0003] Nationality: Netherlands [0004] Cross References to Related Applications [0005] This patent application claims priority to US Provisional Patent Application 61 / 287,600, filed December 17, 2009, which is hereby incorporated by reference in its entirety. technical field [0006] The present invention relates to radiation curable coatings for flooring and methods of formulating these compositions. Background technique [0007] Radiation curable coatings for concrete floors are commercially available from DSM Desotech Inc. as follows: Instant Floor Coatings. Instant Floor Coatings are high performance, instant curing coating systems for concrete floors (slabs). They can be used in both transparent and pigmented systems, using specially designed for The UV light curingmachine of Instant Floor Coatings...
Claims
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