Radiation curable composition
    2.
    发明授权
    Radiation curable composition 有权
    可辐射固化组合物

    公开(公告)号:US08969457B2

    公开(公告)日:2015-03-03

    申请号:US13798598

    申请日:2013-03-13

    发明人: David Briers

    摘要: The present invention relates to a curable composition, which comprises a) at least one radiation-curable resin, b) at least one specific anti-oxidant and c) at least one photoinitiator salt. The invention further relates to a cured product made from the curable composition. The curable compositions and/or the cured products thereof are particularly suitable as laminating adhesives, sealants, and/or encapsulants for electronic or optoelectronic devices.

    摘要翻译: 本发明涉及可固化组合物,其包含a)至少一种辐射固化树脂,b)至少一种特定的抗氧化剂和c)至少一种光引发剂盐。 本发明还涉及由可固化组合物制成的固化产物。 可固化组合物和/或其固化产物特别适用于电子或光电器件的层压粘合剂,密封剂和/或密封剂。

    Process for the preparation of hydroxyl-functionalized polysiloxanes

    公开(公告)号:US11326027B2

    公开(公告)日:2022-05-10

    申请号:US16441451

    申请日:2019-06-14

    摘要: A method for producing a hydroxyl-functionalized polysiloxane having secondary or tertiary hydroxyl groups, said method comprising the steps of: i) reacting a hydroxyalkyl allyl ether having a secondary or tertiary alcohol group with a siloxane under anhydrous conditions and under transition metal catalysis, said hydroxylalkyl allyl ether conforming to Formula (I) wherein n is 0, 1, 2, 3, 4 or 5, preferably 0; m is 1, 2, 3, 4 or 5, preferably 1; spacer group A is constituted by a covalent bond or a C1-C20 alkylene group; R1 is hydrogen, a C1-C8 alkyl group, a C3-C10 cycloalkyl group, a C6-C18 aryl group or an aralkyl group; Ra, Rb, Rc, Rd, R2, R3, R4 and R5 may be the same or different and each is independently selected from hydrogen, a C1-C8 alkyl group, a C6-C18 aryl group or a C6-C18 aralkyl group, with the proviso that at least one of R3 and R4 is not hydrogen; and said siloxane conforming to Formula (II) wherein m is 1, 2, 3, 4 or 5, preferably 1; R6, R7, R8 and R9 may be the same or different and each represent a C1-C8 alkyl group, a C3-C10 cycloalkyl group, a C6-C18 aryl group or a C6-C18 aralkyl group; and ii) in the presence of the reaction product of step i), performing a ring opening polymerization of at least one cyclic siloxane monomer.

    Process for the Preparation of Hydroxyl-Functionalized Polysiloxanes

    公开(公告)号:US20190322808A1

    公开(公告)日:2019-10-24

    申请号:US16441451

    申请日:2019-06-14

    IPC分类号: C08G77/16 C08G77/08 C07F7/08

    摘要: A method for producing a hydroxyl-functionalized polysiloxane having secondary or tertiary hydroxyl groups, said method comprising the steps of: i) reacting a hydroxyalkyl allyl ether having a secondary or tertiary alcohol group with a siloxane under anhydrous conditions and under transition metal catalysis, said hydroxylalkyl allyl ether conforming to Formula (I) wherein n is 0, 1, 2, 3, 4 or 5, preferably 0; m is 1, 2, 3, 4 or 5, preferably 1; spacer group A is constituted by a covalent bond or a C1-C20 alkylene group; R1 is hydrogen, a C1-C8 alkyl group, a C3-C10 cycloalkyl group, a C6-C18 aryl group or an aralkyl group; Ra, Rb, Rc, Rd, R2, R3, R4 and R5 may be the same or different and each is independently selected from hydrogen, a C1-C8 alkyl group, a C6-C18 aryl group or a C6-C18 aralkyl group, with the proviso that at least one of R3 and R4 is not hydrogen; and said siloxane conforming to Formula (II) wherein m is 1, 2, 3, 4 or 5, preferably 1; R6, R7, R8 and R9 may be the same or different and each represent a C1-C8 alkyl group, a C3-C10 cycloalkyl group, a C6-C18 aryl group or a C6-C18 aralkyl group; and ii) in the presence of the reaction product of step i), performing a ring opening polymerization of at least one cyclic siloxane monomer.

    Silylated Polyurethanes, Their Preparation and Use

    公开(公告)号:US20190031812A1

    公开(公告)日:2019-01-31

    申请号:US16152599

    申请日:2018-10-05

    摘要: A silylated polyurethane obtainable by a process comprising the following steps: (a) reacting at least one polyol with at least one triisocyanate to form a hydroxyl-terminated polyurethane prepolymer, and (b) reacting said polyurethane prepolymer with at least one isocyanatosilane of the formula (1): OCN—R—Si—(X)m(R1)3-m, wherein m is 0, 1 or 2, each R1 is independently from each other a hydroxyl group, an alkoxy group having 1 to 10 carbon atoms, an acyloxy group having 1 to 10 carbon atoms, or —OCH(R2)COOR3, wherein R2 is hydrogen or an alkyl group having 1 to 4 carbon atoms and R3 is a straight-chain or branched alkyl group having 1 to 8 carbon atoms, each X is independently from each other and optionally substituted hydrocarbon group having 1 to 10 carbon atoms, which can be interrupted by at least one heteroatom, and R is a difunctional organic group, to endcap the hydroxyl groups on said prepolymer with said isocyanatosilane. The silylated polyurethanes are suitable for use in a preparation as an adhesive, sealant, or coating agent.

    RADIATION CURABLE COMPOSITION
    6.
    发明申请
    RADIATION CURABLE COMPOSITION 有权
    辐射可固化组合物

    公开(公告)号:US20130187144A1

    公开(公告)日:2013-07-25

    申请号:US13798598

    申请日:2013-03-13

    发明人: David Briers

    摘要: The present invention relates to a curable composition, which comprises a) at least one radiation-curable resin, b) at least one specific anti-oxidant and c) at least one photoinitiator salt. The invention further relates to a cured product made from the curable composition. The curable compositions and/or the cured products thereof are particularly suitable as laminating adhesives, sealants, and/or encapsulants for electronic or optoelectronic devices.

    摘要翻译: 本发明涉及可固化组合物,其包含a)至少一种辐射固化树脂,b)至少一种特定的抗氧化剂和c)至少一种光引发剂盐。 本发明还涉及由可固化组合物制成的固化产物。 可固化组合物和/或其固化产物特别适用于电子或光电器件的层压粘合剂,密封剂和/或密封剂。

    Silylated polyurethanes, their preparation and use

    公开(公告)号:US10118984B2

    公开(公告)日:2018-11-06

    申请号:US15697499

    申请日:2017-09-07

    摘要: A silylated polyurethane obtainable by a process comprising the following steps: (a) reacting at least one polyol with at least one triisocyanate to form a hydroxyl-terminated polyurethane prepolymer, and (b) reacting said polyurethane prepolymer with at least one isocyanatosilane of the formula (1): OCN—R—Si—(X)m(R1)3−m, wherein m is 0, 1 or 2, each R1 is independently from each other a hydroxyl group, an alkoxy group having 1 to 10 carbon atoms, an acyloxy group having 1 to 10 carbon atoms, or —OCH(R2)COOR3, wherein R2 is hydrogen or an alkyl group having 1 to 4 carbon atoms and R3 is a straight-chain or branched alkyl group having 1 to 8 carbon atoms, each X is independently from each other and optionally substituted hydrocarbon group having 1 to 10 carbon atoms, which can be interrupted by at least one heteroatom, and R is a difunctional organic group, to endcap the hydroxyl groups on said prepolymer with said isocyanatosilane. The silylated polyurethanes are suitable for use in a preparation as an adhesive, sealant, or coating agent.

    Silylated Polyurethanes, Their Preparation and Use

    公开(公告)号:US20170362371A1

    公开(公告)日:2017-12-21

    申请号:US15697499

    申请日:2017-09-07

    摘要: A silylated polyurethane obtainable by a process comprising the following steps: (a) reacting at least one polyol with at least one triisocyanate to form a hydroxyl-terminated polyurethane prepolymer, and (b) reacting said polyurethane prepolymer with at least one isocyanatosilane of the formula (1): OCN—R—Si—(X)m(R1)3-m, wherein m is 0, 1 or 2, each R1 is independently from each other a hydroxyl group, an alkoxy group having 1 to 10 carbon atoms, an acyloxy group having 1 to 10 carbon atoms, or —OCH(R2)COOR3, wherein R2 is hydrogen or an alkyl group having 1 to 4 carbon atoms and R3 is a straight-chain or branched alkyl group having 1 to 8 carbon atoms, each X is independently from each other and optionally substituted hydrocarbon group having 1 to 10 carbon atoms, which can be interrupted by at least one heteroatom, and R is a difunctional organic group, to endcap the hydroxyl groups on said prepolymer with said isocyanatosilane. The silylated polyurethanes are suitable for use in a preparation as an adhesive, sealant, or coating agent.