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1. 发明授权

US4496624A Fibrous web impregnated with coagulated polyurethane and polyolefin admixture 失效
标题翻译：纤维网浸渍凝固聚氨酯和聚烯烃外加剂
公开(公告)号：US4496624A
公开(公告)日：1985-01-29
申请号：US569754
申请日：1984-01-10
申请人： John R. McCartney
发明人： John R. McCartney
IPC分类号： C08L75/04 , D06N3/14 , B32B5/06
CPC分类号： D06N3/142 , C08L75/04 , Y10S428/904 , Y10T428/24438 , Y10T442/2033
摘要： A stable aqueous polymeric composition is comprised of an aqueous anionic polyurethane dispersion and a compatible polymeric dispersion or emulsion. The compatible dispersions or emulsions may have a substantially neutral pH or be anionic or cationic. The polymeric compositions are useful in impregnating porous substrates to form composite sheet materials which can be further processed to form simulated leather and the like.
摘要翻译：稳定的含水聚合物组合物由阴离子聚氨酯水分散体和相容的聚合物分散体或乳液组成。相容的分散体或乳液可以具有基本上中性的pH或者是阴离子或阳离子的。聚合物组合物可用于浸渍多孔基材以形成可进一步加工以形成模拟皮革等的复合片材。

2. 发明授权

US4448922A Coagulated polyurethane coating compositions 失效
标题翻译：凝结聚氨酯涂料组合物
公开(公告)号：US4448922A
公开(公告)日：1984-05-15
申请号：US398259
申请日：1982-07-14
申请人： John R. McCartney
发明人： John R. McCartney
IPC分类号： C08K3/00 , C08G18/08 , C08K3/34 , C08L7/00 , C08L21/00 , C08L33/00 , C08L33/02 , C08L67/00 , C08L77/00 , C09D5/04 , C09D175/00 , C09D175/04 , C14C11/00 , D04H1/48 , D04H1/64 , D06M15/564 , D06N3/14 , C08L75/04
CPC分类号： C14C11/006 , C08G18/0804 , C08K3/34 , C09D175/04 , C09D5/04 , D04H1/48 , D04H1/587 , D04H1/64
摘要： An aqueous coating composition is comprised of an aqueous anionic polyurethane dispersion and a salt of hydrofluorosilicic acid, wherein the pH of the composition is acidic and the composition is thixotropic. The composition is particularly useful for coating irregular substrates to form a regular surface thereon.
摘要翻译：水性涂料组合物由阴离子聚氨酯水分散体和氢氟硅酸盐组成，其中组合物的pH为酸性，组合物为触变性的。该组合物特别适用于涂覆不规则基材以在其上形成规则表面。

3. 发明授权

US4511605A Process for producing polishing pads comprising a fully impregnated non-woven batt 失效
标题翻译：用于生产抛光垫的方法，其包括完全浸渍的无纺布毡
公开(公告)号：US4511605A
公开(公告)日：1985-04-16
申请号：US552713
申请日：1983-11-17
申请人： John R. McCartney
发明人： John R. McCartney
IPC分类号： C08G18/08 , D04H1/48 , D04H1/64 , B05D5/00
CPC分类号： D04H1/48 , C08G18/0804 , D04H1/587 , D04H1/64
摘要： A method for producing a polishing pad is disclosed. The method involves uniformly fully impregnating a fibrous batt with an aqueous polyurethane dispersion, coagulating the polyurethane dispersion to form an impregnant and drying the impregnant. The aqueous polyurethane dispersion may include colloidal silica. Heat and pressure are applied simultaneously to at least one surface of the impregnant to form a composite having a bulk density approaching the actual density of the impregnant at the polishing surface while maintaining microporosity throughout the structure. An adhesive is applied to the surface opposing the polishing surface to form an adhesive backed polishing pad. The polishing pad is comprised of a polymer homogeneously impregnated fibrous batt with the polishing surface having a bulk density approaching its actual density.
摘要翻译：公开了一种抛光垫的制造方法。该方法包括用水性聚氨酯分散体均匀地完全浸渍纤维毡，凝结聚氨酯分散体以形成浸渍剂并干燥浸渍剂。水性聚氨酯分散体可以包括胶体二氧化硅。将热和压力同时施加到浸渍剂的至少一个表面，以形成堆积密度接近抛光表面的浸渍剂的实际密度，同时保持贯穿整个结构的微孔。将粘合剂施加到与抛光表面相对的表面上以形成粘合剂背衬的抛光垫。抛光垫由聚合物均匀浸渍的纤维毡组成，抛光表面的体积密度接近其实际密度。

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