Stabilized phenolic resole resin compositions and their use
    4.
    发明申请
    Stabilized phenolic resole resin compositions and their use 审中-公开
    稳定酚醛树脂组合物及其用途

    公开(公告)号:US20050020723A1

    公开(公告)日:2005-01-27

    申请号:US10626189

    申请日:2003-07-24

    CPC分类号: B22C1/2253 B22C1/2266

    摘要: This invention relates to a stabilized phenolic resole resin composition comprising a phenolic resole resin and an effective stabilizing amount of an ortho ester. The invention also relates to phenolic urethane binders prepared with the phenolic resole resin compositions, and the use of the binders to make foundry mixes, foundry shapes, and metal castings.

    摘要翻译: 本发明涉及一种稳定的酚醛树脂树脂组合物,其包含酚醛树脂树脂和有效稳定量的原酸酯。 本发明还涉及用酚醛树脂树脂组合物制备的酚醛聚氨酯粘合剂,以及粘合剂用于制造铸造混合物,铸造形状和金属铸件的用途。

    Furanic resin aggregate binders and method
    5.
    发明申请
    Furanic resin aggregate binders and method 审中-公开
    呋喃树脂骨料和方法

    公开(公告)号:US20080207796A1

    公开(公告)日:2008-08-28

    申请号:US11865404

    申请日:2007-10-01

    IPC分类号: B22C1/22

    摘要: Broadly, the invention provides for newly available bio-derived formaldehyde free furanic materials for aggregate binding. The specific example case is aggregate binding for forms used in the metal casting process. The new materials make possible higher productivity and lower phenol, formaldehyde, urea, and/or furfuryl alcohol content in the metal casting form-making process. It is expected that the formulations will work well in other aggregate binding situations as well.

    摘要翻译: 广泛地,本发明提供了用于聚集结合的新近可用的生物衍生的不含甲醛的呋喃形物质。 具体的示例情况是用于金属铸造工艺中的形式的聚合结合。 新型材料可以提高生产率,并降低金属铸造成型工艺中的苯酚,甲醛,尿素和/或糠醇含量。 预期配方在其他聚合物结合情况下也能很好地起作用。

    Foundry mixes and their uses
    6.
    发明授权
    Foundry mixes and their uses 失效
    铸造混合料及其用途

    公开(公告)号:US5459178A

    公开(公告)日:1995-10-17

    申请号:US327465

    申请日:1994-10-21

    CPC分类号: B22C1/2266 C08G61/12

    摘要: This invention relates to foundry mixes and their uses. The foundry mixes comprise (a) a foundry aggregate, and (b) a foundry binder comprising in admixture; (1) an acetoacetate ester; (2) an .alpha., .beta. ethylenically unsaturated monomer; and (3) a liquid tertiary amine catalyst having a pK value of 12-14. The foundry mixes are used to prepare foundry shapes made from foundry mixes by a no-bake process.

    摘要翻译: 本发明涉及铸造混合物及其用途。 铸造混合物包括(a)铸造骨料,和(b)包含混合物的铸造粘合剂; (1)乙酰乙酸酯; (2)α,β烯属不饱和单体; 和(3)pK值为12-14的液体叔胺催化剂。 铸造混合物用于通过无烘焙工艺制备由铸造混合物制成的铸造形状。

    Resin composition for bonding foundry sand
    8.
    发明授权
    Resin composition for bonding foundry sand 失效
    用于粘结铸造砂的树脂组合物

    公开(公告)号:US4417011A

    公开(公告)日:1983-11-22

    申请号:US474683

    申请日:1983-04-01

    摘要: A resin composition for bonding of foundry sand, said composition comprising as a resin component a crystalline unsaturated polyester being solid and substantially tack-free at room temperature and having an acid value of 15 to 100, said unsaturated polyester being prepared by polymerizing (A) a dicarboxylic acid component containing 10 to 50 mole % of terephthalic acid, an alkyl terephthalate, isophthalic acid or an alkyl isophthalate and 50 to 90 mole % of fumaric acid and (B) a glycol component containing at least 90 mole % of ethylene glycol, trimethylene glycol, neopentyl glycol, hydrogenated bisphenol A or 2,2-d-(4-hydroxypropoxyphenyl)propane.

    摘要翻译: 1.一种用于将铸造砂粘合的树脂组合物,所述组合物包含作为树脂组分的在室温下为固体且基本上无粘性的结晶不饱和聚酯,其酸值为15至100,所述不饱和聚酯通过聚合(A) 含有10〜50摩尔%对苯二甲酸,对苯二甲酸烷基酯,间苯二甲酸或间苯二甲酸烷基酯和50〜90摩尔%的富马酸的二羧酸成分和(B)含有至少90摩尔%乙二醇的二醇成分, 丙二醇,新戊二醇,氢化双酚A或2,2-二 - (4-羟丙氧基苯基)丙烷。