Elastomeric reaction products of aromatic isocyanate, aliphatic isocyanate and aromatic diamine components
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C08G-018/12
C08G-018/32
출원번호
US-0543452
(1990-06-25)
발명자
/ 주소
Engebretson Preston J. (Houston TX)
출원인 / 주소
Thare Coat, Inc. (Houston TX 02)
인용정보
피인용 횟수 :
10인용 특허 :
0
초록▼
Disclosed is an elastomer comprising the reaction product of an aromatic isocyanate component, an aliphatic isocyanate component with a functionality of at least two, and having an aromatic diamine component in the curing agent composition. The aromatic isocyanate component is one or more of the fol
Disclosed is an elastomer comprising the reaction product of an aromatic isocyanate component, an aliphatic isocyanate component with a functionality of at least two, and having an aromatic diamine component in the curing agent composition. The aromatic isocyanate component is one or more of the following: aromatic isocyanates, aromatic isocyanate terminated aliphatics, aromatic isocyanate terminated cycloaliphatics, aromatic isocyanate terminated quasi-prepolymers, and aromatic isocyanate terminated prepolymers. The aliphatic isocyanate component is one or more of the following: isocyanate terminated aliphatics, cycloaliphatic isocyanate with at least two isocyanates, isocyanate terminated quasi-prepolymers, and isocyanate terminated prepolymers. The curing agent includes one or more of the following: (1) aromatic diiamines with which a gelation reaction results initially upon mixing the aromatic diamines with the aromatic isocyanate component and the aliphatic isocyanate component, and following the gelation reaction the elastomer cures, (2) reaction products of said aromatic diiamines with a subequivalent amount of a reactive prepolymer or quasi-prepolymer. Other ingredients may also be included. Some advantages of the elastomers of the invention are that they first form a quasi-gel composition before final curing, and this quasi-gel can hold to a sloping, vertical or overhead surface, and/or be worked or shaped. Further, the cured coatings form an essentially uniform and pinhole-free surface on curing. Other advantages stem from the good physical properties of the elastomers of the invention, including high tensile strength, high elongation, chemical and corrosion resistance, and hydrolytic stability.
대표청구항▼
An elastomer comprising the reaction product of an aromatic isocyanate component, an aliphatic isocyanate component with a functionality of at least two, and an aromatic diamine component, and wherein: the aromatic isocyanate component is selected from the group consisting of one or more of aromatic
An elastomer comprising the reaction product of an aromatic isocyanate component, an aliphatic isocyanate component with a functionality of at least two, and an aromatic diamine component, and wherein: the aromatic isocyanate component is selected from the group consisting of one or more of aromatic isocyanates, aromatic isocyanate terminated aliphatics, aromatic isocyanate terminated cycloaliphatic, aromatic isocyanate terminated quasi-prepolymers, and aromatic isocyanate terminated prepolymers; the aliphatic isocyanate component with a functionality of at least two is selected from the group consisting of one or more of isocyanate terminated aliphatics, cycloaliphatic isocyanate with at least two isocyanates, isocyanate terminated quasi-prepolymers, and isocyanate terminated prepolymers; the aromatic diamine component is selected from the group consisting of one or more of: (1) aromatic diiamines with which a gelation reaction results initially upon mixing the aromatic diamines with the aromatic isocyanate component and the aliphatic isocyanate component, and following the gelation reaction the elastomer cures, (2) reaction products of said aromatic diiamines with a subequivalent amount of a reactive prepolymer or quasi-prepolymer.
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이 특허를 인용한 특허 (10)
Handlin ; Jr. Dale Lee ; Chin Steven Soohyun ; Sendijarevic Aisa ; Sendijarevic Vahid ; Frisch Kurt C., Cast polyurethane elastomers containing low polarity amine curing agents.
Markusch Peter H. ; Cline Robert L. ; Sarpeshkar A. M., Non-sagging, light stable polyurethane compositions, a process for producing them, and their use as seam sealants.
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