US 20080026662A1 (19) United States (12) Patent Application Publication (10) Pub. N0.: US 2008/0026662 A1 Ramsey (43) Pub. Date: Jan. 31, 2008 (54) FLEXIBLE SURFACE HAVING A UV Related U.s. Application Data CURABLE WATERPROOFING (63) Continuation-in-part of application No. 11/459,876, COMPOSITION ?led on Jul. 25, 2006. (75) Inventor: Sally Judith Weine Ramsey, Publication Classi?cation Tallmadge, OH (U S) (51) Int. Cl. D04H 1/00 (2006.01) Correspondence Address: A01N 25/00 (200601) WILSON SONSINI GOODRICH & ROSATI (52) US. Cl. ....................... .. 442/376; 424/405; 427/404 650 PAGE MILL ROAD (57) ABSTRACT PALO ALTO, CA 94304-1050 Disclosed are thixotropic compositions that are curable using ultraviolet and Visible radiation. In addition, methods (73) Assignee: ECOLOGY COATINGS, INC., . Akron’ OH (Us) of applying the compositions to ?ber substrates such as paper are described, as are methods of curing the coated products. Partially or fully Water-resistant articles made (21) APP1- N04 11/684,502 using these compositions, such as snoW melting mats, Wind shield protectors, and freezer defrosting sheets are also (22) Filed: Mar. 9, 2007 disclosed 32 Patent Application Publication Jan. 31, 2008 Sheet 1 0f 4 US 2008/0026662 A1 Patent Application Publication Jan. 31, 2008 Sheet 2 0f 4 US 2008/0026662 A1 Patent Application Publication Jan. 31, 2008 Sheet 3 0f 4 US 2008/0026662 A1 Patent Application Publication Jan. 31, 2008 Sheet 4 0f 4 US 2008/0026662 A1 US 2008/0026662 A1 Jan. 31, 2008 FLEXIBLE SURFACE HAVING A UV [0013] (d) at least one acrylate, methacrylate, diacry CURABLE WATERPROOFING late, dimethacrylate, triacrylate and/or trimethacrylate COMPOSITION monomer, Wherein the acrylate is other than tetrahy drofurfuryl acrylate, in an amount of about 2% by CROSS-REFERENCE TO RELATED Weight up to about 80% by Weight; APPLICATIONS [0014] (e) a cross-linkable, silicone acrylate, silicone [0001] This application is a Continuation-in-Part of Us. methacrylate, silicone diacrylate, silicone dimethacry application Ser. No. 11/459,876, ?led Jul. 25, 2006, Which is late, silicone triacrylate and/ or silicone trimethacrylate; incorporated by reference herein in its entirety. [0015] (f) at least one metal salt comprising: [0016] a cation selected from among Li", Na", K", FIELD OF THE INVENTION Mg“, Ca“, A13", Zn2+, Mn“, and Ag"; and [0017] an anion selected from among F“, Cl“, Br“, I“, [0002] Described herein are 100% solids, UV curable C032‘, C104- and N03‘; and compositions for use in adhesion, repair and architecture. [0018] (g) optionally, a pigment, pigment dispersion Also disclosed are articles of manufacture that include the and/or a third photo-initiator; UV curable and/or UV cured compositions described herein. [0019] Wherein the composition is: BACKGROUND OF THE INVENTION [0020] (i) actinic-radiation curable; and [0021] (ii) thixotropic With an apparent viscosity at [0003] A variety of consumer, scienti?c, and industrial room temperature greater than about 5000 centi products have some type of coating, Which has been applied poise. in order to ful?ll some expected function, utility and/or [0022] In one embodiment is a coated mat Wherein the appearance. Coating such products With solvent based coat ?brous substrate comprises recycled paper. In another ings can be problematic due to environmental issues stem embodiment is a coated mat Wherein the coating is impreg ming from evaporation of the volatile solvent. Also, such nated into the ?brous substrate. In a further embodiment is coatings can require thermal curing, resulting in the need for a coated mat comprising silica gel. In yet a further embodi curing ovens, and the associated energy expenditure to ment is a coated mat comprising at least one salt. In one operate them. Adhesives and sealants typically contain vola embodiment is a coated mat Wherein the at least one salt is tile solvents that are harmful and/or toxic to the environment selected from the group consisting of NaCl, CaCl2, MgCl2, and user. Disclosed herein are 100% solids, UV curable and an organic salt. In another embodiment is a coated mat compositions for use in architecture, adhesion and repair. Wherein the organic salt is a carboxylate salt. In another embodiment is a coated mat Wherein the coated mat is SUMMARY OF THE INVENTION formed into an item selected from the group consisting of a [0004] Provided herein are compositions that are 100% snoW melting mat, a freeZer defrosting mat, a Windshield solids. Compositions provided herein do not include toxic, cover, and shelf paper. environmentally harmful, volatile solvents that need to be [0023] In one aspect is a method of preparing a mat for evaporated and/or driven off to affect curing. Compositions melting snoW, comprising: provided herein are thixotropic, With an apparent viscosity at [0024] coating or impregnating a mat With UV curable room temperature of about 5000 centipoise. Compositions Waterproo?ng formulation comprising: provided herein are UV curable. Compositions provided [0025] (a) SiO2 nano-?llers; herein do not contain any Water or organic solvent, Which [0026] (b) a benZoyldiphenylphosphine oxide photo must be removed before complete curing is achieved. There initiator and an ot-hydroxyketone photo-initiator; fore, the compositions provided herein are less haZardous to [0027] (c) tetrahydrofurfuryl acrylate; the environment, and are economical because they require [0028] (d) at least one acrylate, methacrylate, diacry less space, less energy, and less time to cure. Compositions late, dimethacrylate, triacrylate and/or trimethacrylate provided herein can be applied to objects as a single coat. In monomer, Wherein the acrylate is other than tetrahy some embodiments, compositions provided can be applied drofurfuryl acrylate, in an amount of about 2% by to objects in more than one coat, such as, for example, tWo Weight up to about 80% by Weight; coats, or more than tWo coats. Compositions provided herein [0029] (e) a cross-linkable, silicone acrylate, silicone lack solvents and are thus considered environmentally methacrylate, silicone diacrylate, silicone dimethacry friendly. Compositions provided herein do not require ther late, silicone triacrylate and/ or silicone trimethacrylate; mal curing, or drying stages With coatings of the composi [0030] (f) at least one metal salt comprising: tions, and thus there is no need for large ovens, Which decreases the space and energy commitment of the coating [0031] a cation selected from among Li", Na", K", end-user. Mg“, Ca“, A13", Zn“, Mn“, and Ag"; and [0005] In one aspect is a coated mat comprising: [0032] an anion selected from among F‘, Cl‘, Br‘, I‘, [0006] a sheet of a ?brous substrate; C032“, C104“ and N03“; and [0007] a coated top layer; and [0033] (g) optionally, a pigment, pigment dispersion [0008] a coated bottom layer; and/or a third photo-initiator; [0009] Wherein the coating comprises: [0034] Wherein the composition is: [0010] (a) SiO2 nano-?llers; [0035] (i) actinic-radiation curable; and [0011] (b) a benZoyldiphenylphosphine oxide photo [0036] (ii) thixotropic With an apparent viscosity at initiator and an ot-hydroxyketone photo-initiator; room temperature greater than about 5000 centi [0012] (c) tetrahydrofurfuryl acrylate; poise; and US 2008/0026662 A1 Jan. 31, 2008 [0037] coating at least one side of the mat With a compo [0069] Wherein the composition is: sition comprising: [0070] (i) actinic-radiation curable; and [0038] from about 0% to about 25% powdered silica [0071] (ii) thixotropic With an apparent viscosity at gel; and room temperature greater than about 5000 centi poise; and [0039] from about 75% to about 100% salt. [0072] a coating layer comprising from about 0% to about [0040] In one aspect is a freezer defrosting mat, compris 25% poWdered silica gel and about 75% to about 100% salt. ing: [0073] In one embodiment is a vehicle Windshield cover, [0041] a ?brous substrate; further comprising a means to attach the vehicle Windshield [0042] a coating layer, Wherein the coating comprises a cover to the Windshield. In another embodiment is a vehicle UV curable Waterproo?ng formulation comprising: Windshield cover Wherein the means to attach the vehicle [0043] (a) SiO2 nano-?llers; Windshield cover is by use of multiple magnets attached near [0044] (b) a benZoyldiphenylphosphine oxide photo the edges of the Windshield cover. [0074] In one aspect is an insect-resistant liner for lining initiator and an ot-hydroxyketone photo-initiator; shelves, comprising [0045] (c) tetrahydrofurfuryl acrylate; [0075] a ?brous substrate; [0046] (d) at least one acrylate, methacrylate, diacry [0076] a coating layer, Wherein the coating comprises a late, dimethacrylate, triacrylate and/or trimethacrylate UV curable Waterproo?ng formulation comprising: monomer, Wherein the acrylate is other than tetrahy [0077] (a) SiO2 nano-?llers; drofurfuryl acrylate, in an amount of about 2% by [0078] (b) a benZoyldiphenylphosphine oxide photo Weight up to about 80% by Weight; initiator and an ot-hydroxyketone photo-initiator; [0047] (e) a cross-linkable, silicone acrylate, silicone [0079] (c) tetrahydrofurfuryl acrylate; methacrylate, silicone diacrylate, silicone dimethacry [0080] (d) at least one acrylate, methacrylate, diacry late, silicone triacrylate and/ or silicone trimethacrylate; late, dimethacrylate, triacrylate and/or trimethacrylate [0048] (f) at least one metal salt comprising: monomer, Wherein the acrylate is other than tetrahy drofurfuryl acrylate, in an amount of about 2% by [0049] a cation selected