公开(公告)号：US5015504A

公开(公告)日：1991-05-14

申请号：US487829

申请日：1990-03-05

Applicant: John A. G. Gent ,  Jacob M. Blass

Inventor： John A. G. Gent ,  Jacob M. Blass

IPC: A46B17/04 ,  A46B3/22 ,  A46D1/00

CPC classification number: A46D1/0284 ,  A46D1/00

Abstract: The ends of bristles of a brush, e.g. a toothbrush, are treated with a polysiloxane prepolymer which is then cured. The treated bristles are smooth and round-ended.

公开(公告)号：US4847120A

公开(公告)日：1989-07-11

申请号：US268684

申请日：1988-11-07

Applicant: John A. G. Gent

Inventor： John A. G. Gent

IPC: C08J7/04 ,  C08L83/08 ,  C09D183/04 ,  C09D183/06 ,  C09D183/08

CPC classification number: C09D183/08 ,  C09D183/06 ,  Y10T428/31507 ,  Y10T428/31663 ,  Y10T428/31667 ,  Y10T428/31786

Abstract: A prepolymer composition for forming a scratch-resistant coating, comprising an acidic, aqueous solution of a polysiloxane prepolymer having non-coreactive side groups and co-reactive side groups other than hydrolysable groups, the composition being curable by evaporation of solvent and a decrease in acidity causing the co-reactive groups to react together to cross-link the polymer. Suitable co-reactive side groups are amino, epoxy and thiol. Suitable non-coreactive side groups are alkyl and gamma methacryloxy propyl. Acidity is suitably achieved by using a volatilisable organic acid such as acetic acid, so that it evaporates with the solvents to decrease the acidity.

Abstract translation: 一种用于形成耐擦伤涂层的预聚物组合物，其包含具有非共同活性侧基的聚硅氧烷预聚物的酸性水溶液和除可水解基团以外的共反应性侧基，该组合物可通过溶剂的蒸发固化， 酸性导致共反应基团一起反应以交联聚合物。 合适的共反应性侧基是氨基，环氧基和硫醇。 合适的非核心活性侧基是烷基和γ-甲基丙烯酰氧基丙基。 通过使用可挥发的有机酸如乙酸适当地实现酸度，使得其与溶剂蒸发以降低酸度。

公开(公告)号：US5021267A

公开(公告)日：1991-06-04

申请号：US488881

申请日：1990-03-06

Applicant: John A. G. Gent ,  Jacob M. Blass

Inventor： John A. G. Gent ,  Jacob M. Blass

IPC: A01G33/02 ,  A01K75/00 ,  A01K91/00 ,  A61C15/04 ,  D06M13/02 ,  D06M13/224 ,  D06M15/643 ,  D06M15/647 ,  D06M101/00 ,  D06M101/16 ,  D06M101/30 ,  D06M101/34

CPC classification number: D06M15/643 ,  Y10T428/2969

Abstract: A cord, thread or filament is treated by applying to it a dilute solution of a polysiloxane prepolymer which is then cured, such that either (a) the outer envelope of the cord, thread or filament is enrobed, or (b) in the case of a cord or thread, the filaments thereof are substantially individually encapsulated by, a coating of cured polysiloxane polymer. The treated cords, threads and filaments have inter alia improved abrasion and fray resistance, water repellance and slip qualities.

公开(公告)号：US4868024A

公开(公告)日：1989-09-19

申请号：US82607

申请日：1987-08-07

Applicant: David E. Cross ,  John A. G. Gent

Inventor： David E. Cross ,  John A. G. Gent

IPC: A47K7/00 ,  A61F5/44 ,  A61F5/445 ,  A61F5/453 ,  A61F13/15 ,  A61F13/472 ,  A61F13/49 ,  A61F13/551 ,  A61L28/00

CPC classification number: A61L28/0034 ,  A61F5/445 ,  A61L28/0026 ,  A61F2005/4402 ,  Y10T428/1334 ,  Y10T428/1341 ,  Y10T428/31504 ,  Y10T428/31909 ,  Y10T428/3192 ,  Y10T428/31935

Abstract: Sheet material for making a water closet disposable article, such as a bag for body waste products, is unaffected by contact with water of neutral pH, but is degraded on contact with an alkali added to the pan of the water closet. The material may have a central layer of polyvinyl alcohol, an inner layer made up of at least two coatings of a blend of polyvinylidene chloride acrylonitrile copolymer with carboxylated acrylic copolymer, and an outer layer of at least two coatings of carboxylated acrylic acid. A similar sheet can be used to back an absorbent layer of a sanitary article, such as a diaper. In use, an alkaline substance containing triethanolamine and a surfactant, such as sodium dioctyl sulphosuccinate, is added in liquid form to the water closet pan prior to dropping in the bag or other article, so as to raise the pH of the water to about 10.

Abstract translation: 用于制造一个用于身体废物的袋子的一个一次性用品的片材材料不受与中性pH值的水接触的影响，但是与添加到水箱的锅中的碱接触会降解。 该材料可以具有聚乙烯醇的中心层，由至少两个聚偏二氯乙烯丙烯腈共聚物与羧化丙烯酸共聚物的共混物的涂层和至少两个羧化丙烯酸涂层的外层组成的内层。 可以使用类似的片材来背衬卫生用品例如尿布的吸收层。 在使用中，将含有三乙醇胺和表面活性剂如二辛基磺基琥珀酸钠的碱性物质在滴入袋或其它制品之前以液体形式加入到壁橱中，以将水的pH提高到约10 。

公开(公告)号：US4132683A

公开(公告)日：1979-01-02

申请号：US727325

申请日：1976-09-27

Applicant: Hans-Ole Larsen ,  Sven Barfoed ,  John A. G. Gent

Inventor： Hans-Ole Larsen ,  Sven Barfoed ,  John A. G. Gent

IPC: C08G16/02 ,  C08G65/36 ,  C08J9/02 ,  C08L61/34 ,  C08J9/00

CPC classification number: C08J9/02 ,  C08G16/0262 ,  C08G65/36 ,  C08L61/34 ,  C08J2361/00

Abstract: Improved polyfuran foams are prepared by polymerizing or copolymerizing furfuryl alcohol, alone or in combination with prepolymers or precopolymers of furfuryl alcohol, as liquid feed material in the presence of a liquid acidic compound, the liquid feed material containing at least 20% of free furfuryl alcohol and wherein at least 50% of the hydroxyl groups in the mixture are present as free furfuryl alcohol. The liquid acidic compound or mixture of acidic compounds having a pKa value in water of from 1 to 4 or having a pka value in water of less than 1 and being uniformly distributed in mono alcohols that do not polymerize in the presence of said acidic compound or mixture of acidic compounds. The polyfuran foam having non-flammability characteristics as determined by the muffle furance test.

Abstract translation: 改进的聚呋喃泡沫通过在液体酸性化合物存在下单独或与糠醇的预聚物或糠醇的预聚物或预聚物的组合聚合或共聚制备，液体原料含有至少20％的游离糠醇 并且其中混合物中至少50％的羟基作为游离的糠醇存在。 液体酸性化合物或水中pKa值为1至4或在水中pka值小于1且均匀分布在所述酸性化合物存在下不聚合的单醇中的酸性化合物或酸性化合物的混合物，或 酸性化合物的混合物。 该聚呋喃泡沫体具有通过马弗炉试验测定的不可燃性特性。