Method for making impact resistant molding compositions
    1.
    发明授权
    Method for making impact resistant molding compositions 失效
    制造抗冲击成型组合物的方法

    公开(公告)号:US4521567A

    公开(公告)日:1985-06-04

    申请号:US637863

    申请日:1984-08-06

    CPC分类号: C08F265/04 Y10S525/902

    摘要: A method for making impact resistant molding compositions wherein a hard phase having a glass transition temperature above 25.degree. C. and consisting principally of methyl methacrylate is polymerized at least partially in a first stage, following which the monomers of a rubbery phase whose polymers have a glass transition temperature below 25.degree. C. are added in a second stage and the polymerization is carried to completion, polymerization of the hard phase in the first stage being performed in a presence of an oil soluble free radical initiator and of an organosulfur chain transfer agent having at least two thiol groups in the molecule, and polymerization of the monomers of the rubbery phase in the second stage being carried out with graft crosslinkers in the presence of the previously formed hard phase.

    摘要翻译: 一种制造耐冲击成型组合物的方法,其中玻璃化转变温度高于25℃,主要由甲基丙烯酸甲酯组成的硬相至少部分地在第一阶段聚合,随后其聚合物具有 在第二阶段加入低于25℃的玻璃化转变温度,聚合反应完成,第一阶段的硬相聚合在油溶性自由基引发剂和有机硫链转移剂的存在下进行 在分子中具有至少两个硫醇基团,并且在先前形成的硬相存在下,第二阶段中橡胶相的单体在接枝交联剂下进行聚合。

    Impact resistance modifier for polycarbonate
    2.
    发明授权
    Impact resistance modifier for polycarbonate 失效
    聚碳酸酯耐冲击改性剂

    公开(公告)号:US4997883A

    公开(公告)日:1991-03-05

    申请号:US305780

    申请日:1989-02-03

    摘要: An impact resistance modifier for polycarbonate, which is a copolymer, comprising an elastomer and a methyl methacrylate copolymer, which are bonded covalently. The methyl methacrylate copolymer is one that is compatible by itself with polycarbonate resin due to specific comonomers. Such comonomers are aromatic (meth)acrylic esters and (meth)acrylamides, cycloalkyl(meth)acrylamides and cycloalkylmaleimides. Thermoplastic molding compounds comprising polycarbonate and the new impact resistance modifier exhibit excellent impact resistance.

    摘要翻译: 作为共聚物的聚碳酸酯的抗冲击性改性剂,其包含共价键合的弹性体和甲基丙烯酸甲酯共​​聚物。 甲基丙烯酸甲酯共​​聚物是由于特定的共聚单体与聚碳酸酯树脂本身相容的共聚物。 这些共聚单体是芳族(甲基)丙烯酸酯和(甲基)丙烯酰胺,环烷基(甲基)丙烯酰胺和环烷基马来酰亚胺。 包含聚碳酸酯和新的抗冲击性改性剂的热塑性模塑料表现出优异的耐冲击性。

    Opaque synthetic resins
    6.
    发明授权
    Opaque synthetic resins 失效
    不透明合成树脂

    公开(公告)号:US4876311A

    公开(公告)日:1989-10-24

    申请号:US166726

    申请日:1988-03-01

    摘要: The invention relates to opaque synthetic resins containing 1 to 30% by weight of cross-linked beads consisting of a polymer comprised of:(i) 9.9 to 59.9% by weight of at least one radically polymerizable monomer A containing an aromatic residue or nonaromatic monomers A' which contain a halogen;(ii) 90 to 40% by weight of vinyl monomers B which are copolymerizable with these monomers but different from them;(iii) 0.1 to 20% by weight of at least one cross-linking monomer V and(iv) 0 to 10% by weight of a strongly polar monomer Hand where (a) the refractive index of the polymer is higher than that of the polymer matrix and that (b) the average bead size of the beads is in the range of 20 to 50 microns.

    摘要翻译: 本发明涉及含有1至30重量%的交联珠粒的不透明合成树脂,所述交联珠粒由聚合物组成,所述聚合物包含:(i)9.9至59.9重量%的至少一种可自由基聚合的单体A,其含有芳族残基或非芳族单体 A'含有卤素; (ii)90〜40重量%的可与这些单体共聚但不同于它们的乙烯基单体B; (iii)0.1至20重量%的至少一种交联单体V和(iv)0至10重量%的强极性单体H,其中(a)聚合物的折射率高于 聚合物基质和(b)珠的平均珠粒度在20至50微米的范围内。

    Alcohol-soluble printing ink or varnish
    8.
    发明授权
    Alcohol-soluble printing ink or varnish 失效
    醇溶性印刷油墨或清漆

    公开(公告)号:US4460721A

    公开(公告)日:1984-07-17

    申请号:US497595

    申请日:1983-05-24

    摘要: A printing ink or varnish having a binder comprising isopropylmethacrylate and hydrophilic comonomers, particularly unsaturated carboxylic acids, their hydroxyalkyl esters, or a mixture thereof; preferably in combination with cellulose esters such as nitrocellulose, as an additional binder. The ink or varnish also contains dissolved or undissolved dyes, as well as a lower alkyl alcohol solvent. The printing and coatings thus produced are characterized by hardness and a high sealing stability.

    摘要翻译: 具有包含甲基丙烯酸异丙酯和亲水共聚单体,特别是不饱和羧酸,其羟烷基酯或其混合物的粘合剂的印刷油墨或清漆; 优选与纤维素酯如硝化纤维素组合,作为另外的粘合剂。 油墨或清漆也含有溶解或未溶解的染料以及低级烷基醇溶剂。 这样制造的印刷和涂层的特征在于硬度和高密封稳定性。

    Making impact resistant polymers
    9.
    发明授权
    Making impact resistant polymers 失效
    制造耐冲击聚合物

    公开(公告)号:US4308354A

    公开(公告)日:1981-12-29

    申请号:US226008

    申请日:1981-01-19

    IPC分类号: C08F279/02 C08L51/04

    CPC分类号: C08F279/02

    摘要: What is disclosed are a method for making a transparent impact-resistant polymer comprising a rubbery phase of grafted polybutadiene and a hard copolymer phase, which polymer is adaptable to use as a molding material, which method comprises:(1) in a first polymerization stage, dissolving a solid polybutadiene rubber in a monomer mixture comprising (a) methyl methacrylate, (b) styrene, and (c) at least one of methyl acrylate or ethyl acrylate to give a solution containing from 3 to 10 percent by weight of said rubber, and then polymerizing the solution using an initiator promoting graft copolymerization and in the presence ab initio of a chain transfer agent until an amount of said monomer mixture which is one to two times the weight of said polybutadiene rubber introduced is converted, said monomers (a), (b), and (c) being present in said monomer mixture in a ratio by weight of (73.+-.5): (22.+-.2); (5.+-.3) such that the index of refraction of the hard polymer phase produced by the polymerization is equal to that of said polybutadiene, and said initiator being one forming tertiary-butoxy or phenyl free-radicals on decomposition;(2) in a second stage, further polymerizing to a monomer conversion between 25 and 40 percent while stirring to subject the resulting polymer to shear forces producing polymer particles having an average diameter between 0.2 micron and 1.5 microns; and(3) in a third stage, further polymerizing to a monomer conversion greater than 80 percent, and polymers made by such a method.

    摘要翻译: 所公开的是制备透明耐冲击聚合物的方法,该聚合物包含接枝聚丁二烯的橡胶相和硬共聚物相,该聚合物适用于模塑材料,该方法包括:(1)在第一聚合阶段 将固体聚丁二烯橡胶溶解在包含(a)甲基丙烯酸甲酯,(b)苯乙烯和(c)丙烯酸甲酯或丙烯酸乙酯中的至少一种的单体混合物中,得到含有3-10重量%的所述橡胶 然后使用促进接枝共聚的引发剂并在链转移剂的存在下使所述溶液聚合,直到所述单体混合物的量被引入的所述聚丁二烯橡胶的重量的一至二倍被转化为所述单体 ),(b)和(c)以(73 +/- 5):(22 +/- 2)的重量比存在于所述单体混合物中。 (5 +/- 3),使得通过聚合产生的硬聚合物相的折射率等于所述聚丁二烯的折射率,并且所述引发剂是在分解时形成叔丁氧基或苯基自由基的一种; (2)在第二阶段中,进一步聚合至25至40%的单体转化率同时搅拌以使得到的聚合物产生剪切力,产生平均直径在0.2微米至1.5微米之间的聚合物颗粒; 和(3)在第三阶段,进一步聚合至单体转化率大于80%,以及通过这种方法制备的聚合物。

    Compatible mixtures of a polycarbonate and a methacrylate copolymer
    10.
    发明授权
    Compatible mixtures of a polycarbonate and a methacrylate copolymer 失效
    聚碳酸酯和甲基丙烯酸酯共聚物的相容混合物

    公开(公告)号:US4749749A

    公开(公告)日:1988-06-07

    申请号:US84868

    申请日:1987-08-13

    CPC分类号: G11B7/253 C08L69/00

    摘要: Transparent, thermoplastically processible polymer mixtures comprised of:(A) Polycarbonates, particularly bisphenol A polycarbonates; and(B) Copolymers of methyl methacrylate and monosubstituted (meth)acrylamides, the latter present in the amount of 5-25 wt. %, wherein the substituent on the amide nitrogen is a cyclic organic group having an aliphatic, aromatic, or heterocyclic structure, which has no appreciable absorption capability for visible light as far as the UV wavelength of 340 nm.

    摘要翻译: 透明的,热塑性可加工的聚合物混合物包括:(A)聚碳酸酯,特别是双酚A聚碳酸酯; 和(B)甲基丙烯酸甲酯和单取代的(甲基)丙烯酰胺的共聚物,后者的存在量为5-25wt。 %,其中酰胺氮上的取代基是具有脂族,芳族或杂环结构的环状有机基团,对于340nm的UV波长,对可见光没有明显的吸收能力。