A roofing underlayment comprises a reinforcing layer, which is extrusion coated on at least one side with an anti-slip coating layer. Preferably, the reinforcing layer comprises a woven polyethylene or polypropylene scrim. The anti-slip coating layer comprises a compound based on a styrene and ethyl
A roofing underlayment comprises a reinforcing layer, which is extrusion coated on at least one side with an anti-slip coating layer. Preferably, the reinforcing layer comprises a woven polyethylene or polypropylene scrim. The anti-slip coating layer comprises a compound based on a styrene and ethylene/butylene-styrene, S-E/B-S, block copolymer, such as the compound sold under the trademark KRATON® MD6649. The anti-slip coating layer is low in cost and helps prevent water from penetrating the primary roofing material. In addition, the anti-slip coating layer provides an improved anti-skid surface upon which an individual may safely walk.
대표청구항▼
What is claimed is: 1. A roofing underlayment comprising: a reinforcing layer comprising: an upper surface anti-slip coating layer comprising: a core layer comprising 2% UV stabilizer, 10% Beige pigment, 4% anti-block, 20% low density polyethylene, and 64% h-homopolymer polypropylene; and a skin la
What is claimed is: 1. A roofing underlayment comprising: a reinforcing layer comprising: an upper surface anti-slip coating layer comprising: a core layer comprising 2% UV stabilizer, 10% Beige pigment, 4% anti-block, 20% low density polyethylene, and 64% h-homopolymer polypropylene; and a skin layer comprising 2% UV stabilizer, 10% Beige pigment, 8% anti-block, 15% low density polyethylene, and 65% S-E/B-S block copolymer compound comprising about 30%-75% by weight styrene-ethylene/butylene-styrene, about 0%-50% by weight resin, and about 0.1%-2% by weight antioxidant/stabilizer/dusting agent; and a lower surface anti-slip coating layer comprising 73.5% thermoplastic olefin resin, 8.0% low density polyethylene, 2% UV stabilizer, 10.5% white masterbatch, and 6% anti-block; wherein the anti-slip coating comprises a styrene and ethylene/butylene-styrene (S-E/B-S) block copolymer, wherein the upper surface anti-slip coating layer has a thickness of about 0.5 mils to 4 mils, wherein the lower surface anti-slip coating layer has a thickness of about 0.5 mils to 4 mils, and wherein the roofing underlayment is embossed with a pattern. 2. The roofing underlayment according to claim 1, wherein the reinforcing layer comprises a woven polyethylene scrim. 3. The roofing underlayment according to claim 1, wherein the reinforcing layer comprises a woven polypropylene scrim. 4. The roofing underlayment according to claim 1, wherein the reinforcing layer comprises a nonwoven layer. 5. The roofing underlayment according to claim 1, wherein: the reinforcing layer comprises a woven polypropylene scrim; wherein the core layer and the skin layer are coextruded onto the scrim; and wherein the core layer comprises 70% by weight of the upper coating layer and the skin layer comprises 30% by weight of the upper coating layer. 6. A roofing underlayment comprising: a reinforcing layer comprising: an upper surface anti-slip coating layer comprising: a core layer comprising 2% UV stabilizer, 10% Beige pigment, 4% anti-block, 20% low density polyethylene, and 64% h-homopolymer polypropylene; and a skin layer comprising 2% UV stabilizer, 10% Beige pigment, 8% anti-block, 15% low density polyethylene, and 65% S-E/B-S block copolymer compound comprising about 30%-75% by weight styrene-ethylene/butylene-styrene, about 0%-50% by weight resin, and about 0.1%-2% by weight antioxidant/stabilizer/dusting agent; and a lower surface anti-slip coating layer comprising 73.5% thermoplastic olefin resin, 8.0% low density polyethylene, 2% UV stabilizer, 10.5% white masterbatch, and 6% anti-block; wherein the anti-slip coating comprises a styrene and ethylene/butylene-styrene (S-E/B-S) block copolymer, wherein the upper surface anti-slip coating layer has a thickness of about 0.5 mils to 4 mils; wherein the lower surface anti-slip coating layer has a thickness of about 0.5 mils to 4 mils; and wherein the roofing underlayment is embossed with a pattern; wherein the reinforcing layer comprises a woven polypropylene scrim; wherein the core layer and the skin layer are coextruded onto the scrim; and wherein the core layer comprises 70% by weight of the upper coating layer and the skin layer comprises 30% by weight of the upper coating layer.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (1)
Di Pede, Sandro, Multilayer slip resistant sheet material.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.