Skid resistant surfaces

Abstract

Skid-resistant surfaces as described having either a pressure-sensitive adhesive layer or a highly filled, textured binder to reduce skidding. The surfaces are applied to trafficable surfaces such as roof and floors. Products such as roof underlyments bearing the surfaces are described in particular.

1 . A pedestrian trafficable surface that is skid-resistant when wet and which comprises a roofing substrate or a flooring substrate having a non-skid coating comprising a pressure sensitive adhesive or a filled textured binder.  
   
   
       2 . The surface of  claim 1  wherein the filler in said binder is substantially coated with binder.  
   
   
       3 . The surface of  claim 1  wherein filled binder protrudes from the surface.  
   
   
       4 . A roofing underlayment comprising at least one support layer having first and second opposite major surfaces, and a pressure sensitive layer attached to said first major surface of said at least one support layer, such that upon application of said underlayment to a roof, said pressure sensitive layer provides a skid resistant surface for foot traffic thereon.  
   
   
       5 . The roofing underlayment of  claim 4 , wherein said at least one support layer is a woven or non-woven fabric.  
   
   
       6 . The roofing underlayment of  claim 4 , wherein said at least one support layer is a polyolefin film.  
   
   
       7 . The roofing underlayment of  claim 4 , wherein said at least one support layer comprises spun bonded polypropylene or woven polypropylene.  
   
   
       8 . The roofing underlayment of  claim 4 , wherein said pressure sensitive layer comprises a rubber selected from the group consisting of styrene-isoprene-styrene block copolymers, styrene-butadiene-styrene block copolymers, styrene-ethylene-butylene-styrene block copolymers strene/butadiene rubber, natural rubber, silicone rubber, butyl rubber, polyisoprene, polyisobutylene, chloroprene, ethylene-propylene rubber, ethylene alpha olefin, polybutadiene, nitrile rubbers, and acrylic rubber.  
   
   
       9 . The roofing underlayment of  claim 4  wherein the pressure sensitive adhesive layer is less than about 10 microns thick.  
   
   
       10 . The roofing underlayment of  claim 4  wherein the pressure sensitive adhesive layer is preferably less than about 5 microns thick.  
   
   
       11 . The roofing underlayment of  claim 4  wherein the underlayment width is less than about 30 inches.  
   
   
       12 . A roofing underlayment comprising at least one support layer having first and second opposite major surfaces, and a filled textured binder layer attached to said first major surface of said at least one support layer, such that upon application of said underlayment to a roof, said filled textured binder layer provides a skid resistant surface for foot traffic thereon.  
   
   
       13 . The underlayment of  claim 12  wherein the filler is substantially coated with the binder  
   
   
       14 . The roofing underlayment of  claim 12 , wherein said at least one support layer is a woven or non-woven fabric.  
   
   
       15 . The roofing underlayment of  claim 12 , wherein said at least one support layer is a polyolefin film.  
   
   
       16 . The roofing underlayment of  claim 12 , wherein said at least one support layer comprises spun bonded polypropylene or woven polpropylene.  
   
   
       17 . The roofing underlayment of  claim 12 , wherein said binder is a pressure sensitive adhesive comprising a rubber selected from the group consisting of styrene/isoprene/styrene block copolymers, styrene-butadiene-styrene block copolymers, styrene-ethylene-butylene-styrene block copolymers, styrene/butadiene rubber, natural rubber, silicone rubber, butyl rubber, polyisoprene, polyisobutylene, chloroprene, ethylene-propylene rubber, ethylene alpha olefin, polybutadiene, nitrile rubbers, and acrylic rubber.  
   
   
       18 . The roofing underlayment of  claim 12 , wherein said binder is a non-pressure sensitive rubber selected from the group consisting of styrene/isoprene/styrene block copolymers, styrene/butadiene/styrene block copolymers, styrene/ethylene/butylene/styrene block copolymers, styrene/butadiene rubber, natural rubber, silicone rubber, butyl rubber, polyisoprene, polyisobutylene, chloroprene, ethylene-propylene rubber, ethylene alpha olefin, polybutadiene, nitrile rubbers, thermoplastic polyurethanes (TPUs), thermoplastic polyolefins (TPOs), and acrylic rubber.  
   
   
       19 . The roofing underlayment of  claim 12 , wherein said binder is a resin selected from the group including hydrocarbon resins, C-5 hydrocarbon resins, C-9 hydrocarbon resins, (C-5) 2  hydrocarbon resins, rosin acids, rosin esters, terpene resins, coumarone indene resins, phenol formaldehyde resins, urea formaldehyde resins, melamine resins, polyester resins, acrylic resins, alkyd resins, and bitumen.  
   
   
       20 . The roofing underlayment of  claim 12  wherein the filled textured binder layer comprises a filler and the volume percent of filler is more than about 25 percent.  
   
   
       21 . The roofing underlayment of  claim 12  wherein the filled textured binder adhesive layer comprises a filler and the volume percent of filler is preferably more than about 45 percent.  
   
   
       22 . The roofing underlayment of  claim 12  wherein the average filler particle size is less than about 100 microns  
   
   
       23 . The roofing underlayment of  claim 12  wherein the average particle size is less than about 50 microns.  
   
   
       24 . The roofing underlayment of  claim 12  wherein the average filler particle size is less than about 25 microns.  
   
   
       25 . The roofing underlayment of  claim 12  wherein the volume of coating is less than about 10 cc/ft2.  
   
   
       26 . The roofing underlayment of  claim 12  wherein the volume of coating is less than about 5 cc/ft2.  
   
   
       27 . The roofing underlayment of  claim 12  wherein the volume of coating is less than about 2 cc/ft2.  
   
   
       28 . The roofing underlayment of  claim 12  wherein the filler is inorganic or organic,  
   
   
       29 . The roofing underlayment of  claim 12  wherein the filler is hydratable.  
   
   
       30 . The roofing underlayment of  claim 12  wherein the width of the underlayment is less than about 30 inches.  
   
   
       31 . A flexible, rollable roofing underlayment comprising at least one support layer having first and second opposite major surfaces, and a pressure sensitive adhesive layer or a filled textured binder layer attached to said first major surface of said at least one support layer, such that upon application of said underlayment to a roof by unrolling, said filled textured binder layer provides a skid resistant surface for foot traffic thereon, and a pressure sensitive adhesive attached to said second major surface of said at least one support layer such that upon application of said underlayment to a roof the membrane is adhered to said roof.  
   
   
       32 . The underlayment of  claim 31  wherein said support layer is a cross-laminated high density polyethylene film  
   
   
       33 . The underlayment of  claim 31  wherein the pressure sensitive adhesive attached to said second major face of said at least one support layer comprises rubber and bitumen.  
   
   
       34 . A rigid product comprising a rigid substrate selected from plywood or oriented strand board having the non-skid surface of  claim 1 .  
   
   
       35 . A roofing underlayment positioned between a roof support structure and an overlayment, comprising at least one support layer having first and second opposite major surfaces, said first major surface abutting said roof support structure, and a pressure sensitive layer or a filled textured binder layer attached to said second major surface of said at least one support layer, such that upon application of said overlayment to said roof and over said underlayment, said pressure sensitive layer provides a skid resistant surface for foot traffic thereon.  
   
   
       36 . The roofing underlayment of  claim 35 , wherein said at least one support layer is a woven or non-woven fabric.  
   
   
       37 . The roofing underlayment of  claim 35  wherein said at least one support layer is a polyolefin film.  
   
   
       38 . The roofing underlayment of  claim 35  wherein said at least one support layer comprises spun bonded polypropylene.  
   
   
       39 . The roofing underlayment of  claim 35  wherein said pressure sensitive layer comprises a rubber selected from the group consisting of styrene/isoprene/styrene copolymer, ethylene/butylene/styrene block copolymer, styrene butadiene rubber, natural rubber, silicone, butyl rubber, isoprene, butadiene and acrylic rubber.  
   
   
       40 . The roofing underlayment of claims  35  wherein the support layer in said underlayment comprises one or more layers of polymer and one or more layers of fabric.  
   
   
       41 . A method of waterproofing a roof, comprising the steps of: 
 1) providing a roof deck;    2) providing a roll of roof underlayment comprising at least one support layer having a skid-resistant coating therein comprising a layer of pressure sensitive adhesive or filled textured binder; and    3) unrolling said underlayment and applying it to said roof deck.    
   
   
       42 . The method of  claim 41 , wherein said underlayment is applied to said roof deck by mechanical fastening.  
   
   
       43 . The method of  claim 41 , wherein said underlayment is applied to said roof deck by adhesively adhering said underlayment to said deck.  
   
   
       44 . An article comprising a product packaged within a flexible packaging, said packaging having the non-skid surface of  claim 1  coated on its exterior.  
   
   
       45 . An organic or inorganic roofing felt coated having as its exterior surface, the non-skid surface of  claim 1.