中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

22 records (took 0.016 seconds)

    Hydrosoluble acrylic copolymers
    13.
    发明授权
    Hydrosoluble acrylic copolymers 失效
    可溶性丙烯酸共聚物

    公开(公告)号：US6103789A

    公开(公告)日：2000-08-15

    申请号：US362573

    申请日：1999-07-28

    Applicant: Franco Marciandi ,  Christian Collette

    Inventor： Franco Marciandi ,  Christian Collette

    IPC: C04B24/26 ,  C04B103/32 ,  C08F4/32 ,  C08F220/04 ,  C08F220/06 ,  C08F220/36 ,  C08F290/06 ,  C04B7/00 ,  C08F2/38 ,  C08F4/42 ,  C08F20/02

    CPC classification number: C08F220/06 ,  C08F220/36

    Abstract: Acrylic copolymers containing the following repeating units: ##STR1## wherein R.sub.A, R.sub.B, R.sub.C, R.sub.I, R.sub.II, equal or different, are H or CH.sub.3 ; M.sup.+ is H or a cation belonging to group IA, IIA, or ammonium; n is an integer from 0 to 2; A.sub.0 is --COO--(R.sub.T O).sub.m --R.sub.Z wherein R.sub.T is a saturated C.sub.2 -C.sub.4 alkyl group, m is an integer from 7 to 50, R.sub.Z is H or a saturated C.sub.1 -C.sub.4 alkyl group; R.sub.III is H, COOH, COO.sup.- M.sup.+ wherein M.sup.+ is as above defined or A.sub.0 as above defined; and optionally containing a third comonomer in a quantity 0-20% of the total monomer weight,said polymers, that contain in terminal position silanol groups, are obtainable by copolymerizing the monomers in the presence of the following chain transfer agents:(A) SH--R.sub.o --Si(R.sub.IB).sub.NB (OR.sub.IA).sub.NA, wherein R.sub.IA is hydrogen or a saturated C.sub.1 -C.sub.3 alkyl, R.sub.IB is C.sub.1 -C.sub.3 alkyl, NB is an integer and is 1 or zero, NA is an integer and is 2 or 3, R.sub.o is a linear or branched alkylenic chain from 1 to 20 carbon atoms, or a mixture of (A) with (B) phosphorous.sup.I-III inorganic acids or their salts.

    Abstract translation: 含有以下重复单元的丙烯酸共聚物：其中RA，RB，RC，RI，RII等同或不同，为H或CH 3; M +是H或属于IA，IIA或铵的阳离子; n为0〜2的整数; A0为-COO-（RTO）m -RZ，其中RT为饱和C 2 -C 4烷基，m为7至50的整数，R Z为H或饱和C 1 -C 4烷基; R III是H，COOH，COO-M +，其中M +如上定义或如上定义的A0; 并且任选地含有总单体重量的0-20％的第三共聚单体，所述聚合物含有末端位置的硅烷醇基团，可通过在以下链转移剂存在下使单体共聚获得：（A）SH （RIB）NB（ORIA）NA，其中RIA为氢或饱和C1-C3烷基，RIB为C1-C3烷基，NB为整数，为1或0，NA为整数，为2或 3，Ro是1至20个碳原子的直链或支链亚烷基链，或（A）与（B）亚磷酸III-III无机酸或其盐的混合物。

    Shell/core particulates of superabsorbent polymers
    14.
    发明授权
    Shell/core particulates of superabsorbent polymers 失效
    超吸收聚合物的壳/核心颗粒

    公开(公告)号：US5976696A

    公开(公告)日：1999-11-02

    申请号：US796730

    申请日：1997-02-07

    Applicant: Christian Collette ,  Manuel Hidalgo ,  Andre Kowalik ,  Emmanuel Puchois

    Inventor： Christian Collette ,  Manuel Hidalgo ,  Andre Kowalik ,  Emmanuel Puchois

    IPC: B01J20/26 ,  C08F8/00 ,  C08J3/24 ,  B32B5/16

    CPC classification number: C08J3/245 ,  C08J2300/14 ,  Y10T428/2998

    Abstract: Shell/core distortion-resistant particulates of a partially crosslinked superabsorbent polymer, the gradient of partial crosslinking of which being to such extent that the shells are harder and less flexible than the cores thereof, have a capacity to absorb 0.9% saline water of at least 50 g/g and the modulus of which is at least 35,000 Pa; a bed of a saline water gel of the subject particulates has a saline water absorption of at least 20 g/g and a porosity of at least 500 g.

    Abstract translation: 部分交联的超吸收聚合物的壳/芯抗变形颗粒，其部分交联的梯度在这样的程度上使得壳比其芯更硬并且柔韧性更小，具有至少吸收0.9％盐水的能力 50g / g，模量为35,000Pa以上; 本发明颗粒的盐水凝胶床具有至少20g / g的盐水吸收和至少500g的孔隙率。

    Superabsorbent polymers
    15.
    发明授权
    Superabsorbent polymers 失效
    超吸收性聚合物

    公开(公告)号：US5563218A

    公开(公告)日：1996-10-08

    申请号：US294794

    申请日：1994-08-25

    Applicant: Shu R. Rebre ,  Christian Collette ,  Thierry Guerin

    Inventor： Shu R. Rebre ,  Christian Collette ,  Thierry Guerin

    IPC: B01J20/26 ,  A61L15/24 ,  C08F2/00 ,  C08F2/32 ,  C08F120/04 ,  C08F120/06 ,  C08F220/06 ,  C08F265/00 ,  C08F265/02

    CPC classification number: C08F220/06 ,  A61L15/24

    Abstract: Superabsorbent, high gel strength/short gel time acrylic polymers, well suited for the production of items of feminine hygiene/adult incontinence, are prepared by (a) inversely suspending an aqueous acrylic monomer phase in an organic solvent in the presence of an emulsifying agent having an HLB of from 8 to 12, the aqueous monomer phase also comprising a crosslinking agent therefor, (b) polymerizing the inverse suspension of acrylic monomer into a polymer gel, (c) absorbing a second charge of acrylic monomer into the polymer gel thus attained, the ratio of the amount of the second monomer charge to the amount of monomer in the beginning aqueous phase ranging from 1 to 1.2, (d) introducing a surfactant having an HLB of from 2 to 5 into the medium of polymerization, and (e) polymerizing the second monomer charge within the polymer gel.

    Abstract translation: 通过（a）在乳化剂存在下将有机丙烯酸类单体相反相悬浮在有机溶剂中来制备非常适合于生产女性卫生/成人失禁产品的超吸收剂，高凝胶强度/短凝胶时间丙烯酸聚合物 具有8-12的HLB，含水单体相还含有交联剂，（b）将丙烯酸单体的反相悬浮液聚合成聚合物凝胶，（c）将丙烯酸单体的第二次装料吸收到聚合物凝胶中，因此 第一单体电荷量与初始水相中单体量的比例为1-1.2，（d）将HLB为2-5的表面活性剂引入到聚合介质中，和（ e）在聚合物凝胶内聚合第二单体电荷。

    Superabsorbent acrylic powders
    17.
    发明授权
    Superabsorbent acrylic powders 失效
    超吸收性丙烯酸粉末

    公开(公告)号：US5412037A

    公开(公告)日：1995-05-02

    申请号：US293031

    申请日：1994-08-19

    Applicant: Shu R. Rebre ,  Christian Collette ,  Andre Kowalik

    Inventor： Shu R. Rebre ,  Christian Collette ,  Andre Kowalik

    IPC: A61L15/60 ,  C08F2/20 ,  C08F2/32 ,  C08F8/44 ,  C08F20/06 ,  C08F120/00 ,  C08F120/04 ,  C08F120/06 ,  C08F265/02

    CPC classification number: C08F20/06 ,  A61L15/60

    Abstract: Particulates of a superabsorbent partially, neutralized acrylic polymer, e.g., polyacrylic acid, having a mean particle size ranging from 100 to 500 .mu.m, essentially monodisperse and essentially devoid of fines having a particle size of less than 100 .mu.m, having a nonuniformly surfaced spheroidal particle morphology and well suited for a variety of hygienic applications, are prepared by (i) polymerizing a suspension of an acrylic monomer charge I in an organic medium and producing a suspension of acrylic polymer gel particles, such acrylic monomer charge I having a degree of neutralization greater than that desired in the final superabsorbent polymer, (ii) next absorbing a second acrylic monomer charge II into the gel particles, such acrylic monomer charge II having a degree of neutralization less than that desired in the final superabsorbent polymer, and (iii) polymerizing in the gel particles the second acrylic monomer charge II.

    Abstract translation: 超吸收剂部分中和的丙烯酸聚合物（例如聚丙烯酸）的颗粒，其平均粒度范围为100-500μm，基本上是单分散的，基本上没有粒度小于100μm的细粒，具有不均匀的表面 通过（i）将丙烯酸类单体电荷I的悬浮液在有机介质中聚合并制备丙烯酸类聚合物凝胶颗粒的悬浮液，制备球形颗粒形态，并且非常适合于各种卫生应用， 的中和度大于最终超吸收性聚合物中所需的中和度，（ii）接下来将第二丙烯酸类单体电荷II吸收到凝胶颗粒中，具有小于最终超吸收性聚合物中所需中和度的丙烯酸类单体电荷II，和 iii）在凝胶颗粒中聚合第二丙烯酸类单体电荷II。

    Superabsorbent acrylic powders
    18.
    发明授权
    Superabsorbent acrylic powders 失效

    公开(公告)号：US5397845A

    公开(公告)日：1995-03-14

    申请号：US104761

    申请日：1993-08-12

    Applicant: Shu R. Rebre ,  Christian Collette ,  Andre Kowalik

    Inventor： Shu R. Rebre ,  Christian Collette ,  Andre Kowalik

    IPC: A61L15/60 ,  C08F2/20 ,  C08F2/32 ,  C08F8/44 ,  C08F20/06 ,  C08F120/00 ,  C08F120/04 ,  C08F120/06 ,  C08F2/18 ,  C08F265/02

    CPC classification number: C08F20/06 ,  A61L15/60

    Abstract: Particulates of a superabsorbent partially, neutralized acrylic polymer, e.g., polyacrylic acid, having a mean particle size ranging from 100 to 500 .mu.m, essentially monodisperse and essentially devoid of fines having a particle size of less than 100 .mu.m, having a nonuniformly surfaced spheroidal particle morphology and well suited for a variety of hygienic applications, are prepared by (i) polymerizing a suspension of an acrylic monomer charge I in an organic medium and producing a suspension of acrylic polymer gel particles, such acrylic monomer charge I having a degree of neutralization greater than that desired in the final superabsorbent polymer, (ii) next absorbing a second acrylic monomer charge II into the gel particles, such acrylic monomer charge II having a degree of neutralization less than that desired in the final superabsorbent polymer, and (iii) polymerizing in the gel particles the second acrylic monomer charge II.

Patent Agency Ranking