Process for preparing multihardness foam articles
    1.
    发明授权
    Process for preparing multihardness foam articles 失效
    制备多硬质泡沫制品的方法

    公开(公告)号:US5273695A

    公开(公告)日:1993-12-28

    申请号:US776382

    申请日:1991-11-18

    CPC分类号: B29C44/0476 B29C44/0461

    摘要: A multihardness foamed seat having side rolls including one or more zones of a second polyurethane foam encapsulated in a first polyurethane foam is prepared by arranging the seat mould (10) so that the side roll well (12) is inclined in a direction parallel to its length, introducing a liquid first foam formulation into the side roll well, and then introducing a liquid second foam formulation within a time interval corresponding to between 0.01t to 1.5t where t is the cream time of the first foam formulation. The process is particularly useful for the preparation of automobile seats having side rolls.

    摘要翻译: PCT No.PCT / GB90 / 00719 Sec。 371日期1991年11月18日 102(e)1991年11月18日日期PCT提交1990年5月9日PCT公布。 WO90 / 14215A PCT出版物 日本1990年11月29日。具有包括一个或多个包封在第一聚氨酯泡沫中的第二聚氨酯泡沫的一个或多个区域的侧辊的多硬质泡沫座通过布置所述座模(10)使得所述侧辊井(12)为 在平行于其长度的方向上倾斜,将液体第一泡沫配方引入侧辊井,然后在对应于0.01t至1.5t的时间间隔内引入液体第二泡沫配方,其中t是第一泡沫配方的奶油时间 泡沫配方。 该方法对于制备具有侧辊的汽车座椅特别有用。

    Demulsifying process
    4.
    发明授权
    Demulsifying process 失效
    破乳过程

    公开(公告)号:US4596653A

    公开(公告)日:1986-06-24

    申请号:US661711

    申请日:1984-10-17

    摘要: Emulsions of oil and water are broken by treating them with a demulsifier which is a polysiloxane polyalkylene oxide copolymer in which the polyalkylene oxide segment is composed of random ethylene oxide and propylene oxide units.The demulsifier is particularly useful in breaking emulsions of water in crude oil which are normally difficult to separate and in breaking emulsions at relatively low temperatures, e.g. 30.degree. to 45.degree. C.

    摘要翻译: 油和水的乳液通过用聚硅氧烷聚环氧烷共聚物的破乳剂处理而破坏,其中聚环氧烷链段由无规环氧乙烷和环氧丙烷单元组成。 破乳剂特别可用于破碎原油中的水的乳液,其通常难于分离,并在相对低的温度下破乳。 30〜45℃

    Phenolic resin composition
    8.
    发明授权
    Phenolic resin composition 失效
    酚醛树脂组合物

    公开(公告)号:US4571413A

    公开(公告)日:1986-02-18

    申请号:US701097

    申请日:1985-02-12

    CPC分类号: C08L61/06

    摘要: A curable phenolic resin composition comprising (A) a major proportion of an aqueous phenolic resole resin and (B) a minor proportion of a poly(1,2-alkylene oxide) having terminating groups selected from the group comprising --NH.sub.2, --CONH.sub.2, --CH.CO.NH.sub.2 and --OCONH.sub.2 groups. The compositions are preferably cured with an acid catalyst and post cured at an elevated temperature.

    摘要翻译: 一种可固化的酚醛树脂组合物,其包含(A)主要比例的酚醛树脂水溶液树脂和(B)少量的具有选自-NH 2,-CONH 2, -CH.CO.NH 2和-OCONH 2基团。 组合物优选用酸催化剂固化并在升高的温度下固化。