Stabilizers and antiozonants for elastomers
    2.
    发明授权
    Stabilizers and antiozonants for elastomers 失效
    用于弹性体的稳定剂和抗臭氧剂

    公开(公告)号:US06797755B1

    公开(公告)日:2004-09-28

    申请号:US10110620

    申请日:2002-04-15

    IPC分类号: C08L541

    摘要: Elastomers which have excellent stability to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation comprise, as stabilizers, at least one compound of the formula (I): [R—S(═O)m—CH2—CH(OH)—CH2]n—N(R1)2−n—R2, in which R is C4-C20alkyl, hydroxyl-substituted C4-C20alkyl; phenyl, benzyl, &agr;-methylbenzyl, &agr;,&agr;-dimethylbenzyl, cyclohexyl or —(CH2)qCOOR3, and, if m is 0, R may additionally be (a); and, if n is 1 and R4 is hydrogen, R may additionally be R2—R1N—CH2—CH(OH)—CH2—S(═O)m—(CH2)x— or R2—R1N—CH2—CH(OH)—CH2—S(═O)m—CH2—CH2—(OCH2—CH2)y—, R1 is hydrogen, cyclohexyl or C3-C12alkyl, R2 is (b), R3 is C1-C18alkyl, R4 is hydrogen or —CH2—CH(OH)—CH2—S(═O)m—R, X is C1-C8alkyl, Y is C1-C8alkyl, m is 0 or 1, n is 1 or 2, q is 1 or 2, x is from 2 to 6, and y is 1 or 2. The compounds of the formula (I) are also suitable as stabilizes for elastomers to prevent contact discoloration of substrates coming into contact with elastomers.

    摘要翻译: 具有优异稳定性以防止氧化,热,动态,光诱导和/或臭氧诱导的降解的弹性体包含作为稳定剂的至少一种式(I)化合物:[RS(= O)m -CH 2 -CH (OH)-CH 2] n N(R 1)2-n R 2,其中R是C 4 -C 20烷基,羟基取代的C 4 -C 20烷基; 苯基,苄基,α-甲基苄基,α,α-二甲基苄基,环己基或 - (CH 2)q COOR 3,如果m为0,则R可另外为(a)。 并且如果n为1且R 4为氢,则R可以另外为R 2 -R 1 N-CH 2 -CH(OH)-CH 2 -S(= O)m - (CH 2)x - 或R 2 -R 1 N-CH 2 -CH(OH)-CH 2 -S(= O)m -CH 2 -CH 2 - (OCH 2 -CH 2)y - ,R 1是氢,环己基或C 3 C 12烷基,R 2是(b),R 3是C 1 -C 18烷基,R 4是氢或-CH 2 -CH(OH)-CH 2 -S(= O)m R,X是C 1 -C 8烷基 ,Y为C1-C8烷基,m为0或1,n为1或2,q为1或2,x为2至6,y为1或2.式(I)化合物也适用 稳定弹性体以防止与弹性体接触的基底的接触变色。

    Stabilizers for emulsion crude rubbers, synthetic latex and natural rubber latex
    3.
    发明授权
    Stabilizers for emulsion crude rubbers, synthetic latex and natural rubber latex 失效
    乳化乳胶,合成胶乳和天然橡胶胶乳的稳定剂

    公开(公告)号:US06596796B1

    公开(公告)日:2003-07-22

    申请号:US09688417

    申请日:2000-10-16

    IPC分类号: C08K5134

    CPC分类号: C08K5/134 C08L21/02

    摘要: There are described compositions comprising a) an emulsion crude rubber, synthetic latex or natural rubber latex subject to oxidative, thermal, dynamic and/or light-induced degradation, and b) as stabilizer at least one compound of formula I wherein R1 is C8-C20alkyl; and optionally c) as further stabilizer at least one compound of formula II wherein R2 is C8-C12alkyl, R3 is hydrogen, C1-C12alkyl, cyclohexyl, 1-methylcyclohexyl, benzyl, &agr;-methylbenzyl, &agr;,&agr;-dimethylbenzyl or —CH2—S—R2, R4 is C1-C12alkyl, benzyl, &agr;-methylbenzyl, 60 ,&agr;-dimethylbenzyl or —CH2—S—R2, and R5 is hydrogen or methyl.

    摘要翻译: 描述的组合物包括:a)经受氧化,热,动态和/或光诱导降解的乳液粗橡胶,合成胶乳或天然橡胶胶乳,和b)作为稳定剂的至少一种式I化合物,其中R1是C8-C20烷基;和 任选地,c)作为其它稳定剂的至少一种式II化合物,其中R2是C8-C12烷基,R3是氢,C1-C12烷基,环己基,1-甲基环己基,苄基,α-甲基苄基,α,α-二甲基苄基或-CH2-S-R2 R 4是C 1 -C 12烷基,苄基,α-甲基苄基,60,α-二甲基苄基或-CH 2 -S-R 2,R 5是氢或甲基。

    Stabilizers and antiozonants for elastomers

    公开(公告)号:US07217841B2

    公开(公告)日:2007-05-15

    申请号:US10842580

    申请日:2004-04-15

    IPC分类号: C07C211/51 C07C317/30

    摘要: Elastomers which have excellent stability to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation comprise, as stabilizers, at least one compound of the formula I [R—S(═O)m—CH2—CH(OH)—CH2]n—N(R1)2-n—R2,   (I) in which R is C4–C20alkyl, hydroxyl-substituted C4–C20alkyl; phenyl, benzyl, α-methylbenzyl, α,α-dimethylbenzyl, cyclohexyl or —(CH2)qCOOR3, and, if m is 0, R may additionally be and, if n is 1 and R4 is hydrogen, R may additionally be R2—R1N—CH2—CH(OH)—CH2—S(═O)m—(CH2)x— or R2—R1N—CH2—CH(OH)—CH2—S(═O)m—CH2—CH2—(O—CH2—CH2)y—, R1 is hydrogen, cyclohexyl or C3–C12alkyl, R2 is R3 is C1-C18alkyl, R4 is hydrogen or —CH2—CH(OH)—CH2—S(═O)m—R, X is C1–C8alkyl, Y is C1–C8alkyl, m is 0 or 1, n is 1 or 2, q is 1 or 2, x is from 2 to 6, and y is 1 or 2. The compounds of the formula I are also suitable as stabilizers for elastomers to prevent contact discoloration of substrates coming into contact with elastomers.

    Process for the preparation of mercaptomethylphenois
    7.
    发明授权
    Process for the preparation of mercaptomethylphenois 失效
    巯基甲基苯酚的制备方法

    公开(公告)号:US06365781B2

    公开(公告)日:2002-04-02

    申请号:US09755369

    申请日:2001-01-05

    IPC分类号: C07C31900

    摘要: There is disclosed an improved process for the preparation of a compound of the formula I wherein n is 0 or 1, R1 is C1-C12alkyl or —CH2SR3, R2 is C1-C12alkyl, C7-C9phenylalkyl, C7-C9-phenylalkyl substituted on the phenyl radical by from 1 to 3 C1-C4alkyl groups; or —CH2SR3, R3 is C6-C18alkyl, phenyl or benzyl, R4 is hydrogen or methyl, R5 is hydrogen or methyl, with the proviso that R4 and R5 are not simultaneously methyl, by reacting a compound of the formula II wherein n, R4 and R5 are as previously defined, R11 is hydrogen or C1-C12alkyl; and R12 is hydrogen, C1-C12alkyl, C7-C9phenylalkyl, C7-C9phenylalkyl substituted on the phenyl radical by from 1 to 3 C1-C4alkyl groups; with formaldehyde or a compound that liberates formaldehyde under the reaction conditions and with at least one compound of the formula III R3SH  (III) wherein R3 is as previously defined, in the presence of a base, said base being mono- or dimethylamine or mono- or diethylamine, which process comprises treating afterwards the reaction product with a reducing agent.

    摘要翻译: 公开了一种制备式I化合物的改进方法,其中n为0或1,R1为C1-C12烷基或-CH2SR3,R2为C1-C12烷基,C7-C9苯基烷基,C7-C9-苯基烷基取代苯基 由1至3个C 1 -C 4烷基基团; 或-CH 2 S R 3,R 3是C 6 -C 18烷基,苯基或苄基,R 4是氢或甲基,R 5是氢或甲基,条件是R 4和R 5不同时为甲基,通过使式II的化合物在n, R 5如前所定义,R 11为氢或C 1 -C 12烷基; 并且R 12是氢,C 1 -C 12烷基,C 7 -C 9苯基烷基,在苯基上被1至3个C 1 -C 4烷基取代的C 7 -C 9苯基烷基; 与甲醛或在反应条件下释放甲醛的化合物,以及至少一种式III的化合物,其中R 3如前所定义,在碱的存在下,所述碱是单或二甲胺或一或二乙胺,该方法 包括用还原剂处理反应产物。

    Graftable hindered amine light stabilizers
    9.
    发明申请
    Graftable hindered amine light stabilizers 有权
    可接枝的受阻胺光稳定剂

    公开(公告)号:US20060173107A1

    公开(公告)日:2006-08-03

    申请号:US10543428

    申请日:2004-02-02

    IPC分类号: C08K5/34 C07D401/02

    摘要: The invention describes novel compound of the formula (I), wherein the general symbols are as defined in claim 1, as stabilizers for protecting organic materials, in particular synthetic polymers, against oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation.

    摘要翻译: 本发明描述了式(I)的新型化合物,其中通式为如权利要求1所定义,作为用于保护有机材料,特别是合成聚合物的稳定剂,用于氧化,热,动态,光诱导和/或臭氧 - 诱导退化。

    Non-staining antidegradants for vulcanized elastomers
    10.
    发明授权
    Non-staining antidegradants for vulcanized elastomers 有权
    用于硫化弹性体的非染色抗降解剂

    公开(公告)号:US07799951B2

    公开(公告)日:2010-09-21

    申请号:US11992925

    申请日:2006-10-02

    摘要: The instant invention discloses a process for preventing contact discoloration of substrates coming into contact with elastomers and stabilizing elastomers to prevent oxidative, thermal, dynamic, light-induced and/or ozone-induced degradation, which comprises incorporating into the elastomers, or applying to these, at least a compound of the formula (I) wherein R1 is C1-C12alkyl, R2 is C1-C12alkyl, or R1 and R2 together with the carbon atom to which they are attached form an unsubstituted or with C1-C4alkyl substituted C5-C12cycloalkyl ring; R3 is hydrogen or —CH2—S(O)m—R5, R4 and R5 independently of each other are unsubstituted or with cyano substituted C5-C18-alkyl; C7-C9phenylalkyl, unsubstituted or with halogen, hydroxyl, cyano or C1-C4alkyl substituted phenyl or naphthyl; benzothiazolyl or —R6—CO2—R7, R6 is C1-C18alkylene, R7 is C1-C18alkyl, and m is 0, 1 or 2. The instant invention discloses also novel compounds of the formula (I), new mixtures of compounds of the formula (I) and compositions thereof in elastomers.

    摘要翻译: 本发明公开了一种防止与弹性体接触的基材的接触变色和稳定弹性体以防止氧化,热,动态,光诱导和/或臭氧引起的降解的方法,其包括加入到弹性体中或应用于这些 至少一种其中R 1为C 1 -C 12烷基,R 2为C 1 -C 12烷基或R 1和R 2与它们所连接的碳原子一起形成未取代的或具有C 1 -C 4烷基取代的C 5 -C 12环烷基的式(I)化合物 环; R 3是氢或-CH 2 -S(O)m -R 5,R 4和R 5彼此独立地是未取代的或具有氰基取代的C 5 -C 18 - 烷基; C 7 -C 9苯基烷基,未取代或与卤素,羟基,氰基或C 1 -C 4烷基取代的苯基或萘基; 苯并噻唑基或-R6-CO2-R7,R6是C1-C18亚烷基,R7是C1-C18烷基,m是0,1或2.本发明还公开了新的式(I)化合物, 式(I)及其组合物。