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公开(公告)号：US4066591A
公开(公告)日：1978-01-03
申请号：US582946
申请日：1975-06-02
Applicant: Roger L. Scriven , Wen-Hsuan Chang
Inventor： Roger L. Scriven , Wen-Hsuan Chang
CPC classification number: C08G18/0804 , C08G18/758 , Y10T428/31591 , Y10T428/31678 , Y10T442/2369
Abstract: A water-diluted, ungelled, non-sedimenting polyurethane and a process for preparing such a polyurethane in an aqueous medium is disclosed. High molecular weight thermoplastic products are obtained by chain extending in aqueous medium an NCO polymer having a salt group equivalent weight of 6000 or less and substantially free of reactive hydrogen. The average functionality and equivalent ratio of the polyisocyanate and active hydrogen-containing materials used in making the NCO polymer, as well as the functionality of the chain extender, are carefully controlled so as to get high molecular weight ungelled products. Thermosetting compositions can be made by adding curing agent to the chain extended material. Curing agents can also be incorporated into the polymer molecule either in the making of the partially reacted NCO-containing prepolymer or by further reaction with the partially reacted NCO-containing prepolymer. The water-dispersed polyurethanes of the present invention are excellent film formers, capable of making coatings with a wide spectrum of desirable properties. In addition, they can be added to other water-compatible compositions to improve flexibility, hardness, drying and other coating properties.
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82.发明授权Transparent, optically clear poly(lactone-urethane) interlayers for laminated safety glass 失效用于层压安全玻璃的透明，透明的聚（内酯 - 氨基甲酸酯）夹层
公开(公告)号：US4062887A
公开(公告)日：1977-12-13
申请号：US639728
申请日：1975-12-11
Applicant: Wen-Hsuan Chang , Vernon G. Ammons
Inventor： Wen-Hsuan Chang , Vernon G. Ammons
CPC classification number: B32B17/1077 , B32B17/10688 , B32B17/10779 , C08G18/4286 , C08G18/664 , C08G18/6644
Abstract: Energy-absorbing interlayers and glass laminates prepared therefrom for use as automobile windshields and other safety glass applications are disclosed. The interlayers are made from a poly(lactone-urethane) in which the molecular weight and structure of the lactone moiety is carefully controlled so as to get optimum energy-absorbing and optical properties.
Abstract translation: 公开了用于汽车挡风玻璃和其他安全玻璃应用的由其制备的吸收能量的中间层和玻璃层压板。 中间层由聚内酯 - 氨基甲酸酯制成，其中仔细控制内酯部分的分子量和结构，以获得最佳的能量吸收和光学性质。
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83.发明授权Laminated articles prepared from transparent, non-blooming poly(lactone-urethane) interlayers 失效由透明的，未起泡的聚（内酯 - 氨基甲酸酯）夹层制备的层压制品
公开(公告)号：US4035548A
公开(公告)日：1977-07-12
申请号：US728371
申请日：1976-09-30
Applicant: Wen-Hsuan Chang , Vernon G. Ammons
Inventor： Wen-Hsuan Chang , Vernon G. Ammons
CPC classification number: C08G18/6644 , B32B17/10688 , B32B17/1077 , B32B17/10779 , C08G18/4269 , C08G18/664 , C08G18/758 , Y10T428/31507 , Y10T428/31573 , Y10T428/31601 , Y10T428/31663
Abstract: Energy-absorbing interlayers and glass laminates prepared therefrom for use as automobile windshields and other safety glass applications are disclosed. The interlayers are made from a poly(lactone-urethane) in which the molecular weight and structure of the lactone moiety is carefully controlled so as to get optimum energy-absorbing and optical properties.
Abstract translation: 公开了用于汽车挡风玻璃和其他安全玻璃应用的由其制备的吸收能量的中间层和玻璃层压板。 中间层由聚内酯 - 氨基甲酸酯制成，其中仔细控制内酯部分的分子量和结构，以获得最佳的能量吸收和光学性质。
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