Papermaking device and method for producing papermaking device

    公开(公告)号:US11987933B2

    公开(公告)日:2024-05-21

    申请号:US17815431

    申请日:2022-07-27

    摘要: A papermaking device may have excellent strength and suppressed unevenness in strength between its parts. Such a papermaking device may be used in papermaking machine and may include at least one resin layer comprising polyurethane resin. The polyurethane resin may be obtained by reacting a urethane prepolymer having an isocyanate group with a curing agent having an active hydrogen group. The urethane prepolymer may be obtained by reacting a polyisocyanate compound including 2,4-tolylene-diisocyanate and/or 2,6-tolylene-diisocyanate with a polyol compound including one or more polyether polycarbonate diol(s).

    SOFT THERMOPLASTIC POLYURETHANE ELASTOMERS AND PROCESS FOR THEIR PREPARATION
    5.
    发明申请
    SOFT THERMOPLASTIC POLYURETHANE ELASTOMERS AND PROCESS FOR THEIR PREPARATION 审中-公开
    软热塑性聚氨酯弹性体及其制备方法

    公开(公告)号:US20160122465A1

    公开(公告)日:2016-05-05

    申请号:US14895858

    申请日:2014-05-28

    申请人: BASF SE

    IPC分类号: C08G18/76 C08G18/32

    摘要: The present invention discloses a thermoplastic polyurethane comprising substantially no plasticizers and having a Shore A hardness of 60 or less, which is prepared by a one-step polymerization of i) linear polyol, ii) organic diisocyanate and iii) glycol chain extender mainly comprising ethylene glycol and/or 1,3-propanediol; wherein the linear polyol (i) has a number average molecular weight within the range of from 1.5×103 g/mol to 5.0×103 g/mol. The thermoplastic polyurethane of the present invention can be easily produced by conventional production methods, and the thermoplastic polyurethane thus produced can be molded to articles in practicable processing cycles. Moreover, the thermoplastic polyurethane articles have low shrinkage, have good low-temperature properties and good mechanical properties, and do not harden substantially at low temperature.

    摘要翻译: 本发明公开了一种热塑性聚氨酯,其基本上不含增塑剂,其肖氏A硬度为60以下,其通过i)线性多元醇的一步聚合制备,ii)有机二异氰酸酯和iii)主要包含乙烯的乙二醇增链剂 乙二醇和/或1,3-丙二醇; 其中所述线性多元醇(i)的数均分子量在1.5×10 3 g / mol至5.0×10 3 g / mol的范围内。 本发明的热塑性聚氨酯可以通过常规的制造方法容易地制造,并且由此制造的热塑性聚氨酯可以在可行的加工循环中模塑成型。 此外,热塑性聚氨酯制品具有低收缩率,具有良好的低温性能和良好的机械性能,并且在低温下不会显着硬化。

    POLYOL COMPOSITION FOR PRODUCTION OF POLYURETHANE RESINS, AND POLYURETHANE RESIN PRODUCING PROCESS USING SAME
    9.
    发明申请
    POLYOL COMPOSITION FOR PRODUCTION OF POLYURETHANE RESINS, AND POLYURETHANE RESIN PRODUCING PROCESS USING SAME 审中-公开
    用于生产聚氨酯树脂的聚合物组合物和使用其的聚氨酯树脂生产方法

    公开(公告)号:US20130310477A1

    公开(公告)日:2013-11-21

    申请号:US13981796

    申请日:2011-08-22

    IPC分类号: C08L75/06

    摘要: The present invention is a polyol composition (A) for the production of polyurethane resins which comprises a compound (a1) having a vinyl-polymerizable functional group represented by general formula (I) and a strength improver (a2) represented by general formula (II). In general formula (I), R is hydrogen, C1-15 alkyl, or C6-21 aryl. In general formula (II), R1 is a residue derived from an active-hydrogen-containing compound by removing one active hydrogen atom; Y is a residue derived from an at least divalent aromatic polycarboxylic acid (f) by removing the carboxyl groups; a is an integer satisfying the relationship: 1≦a≦(the number of substituents on the aromatic ring−1); Z is a residue derived from an at least m-valent active-hydrogen-containing compound by removing the m active hydrogen atoms; and m is an integer of 1 to 10.

    摘要翻译: 本发明是一种用于生产聚氨酯树脂的多元醇组合物(A),其包含具有由通式(I)表示的乙烯基聚合性官能团的化合物(a1)和由通式(II)表示的强度改进剂(a2) )。 在通式(I)中,R是氢,C 1-15烷基或C 6-21芳基。 在通式(II)中,R 1是通过除去一个活性氢原子而衍生自含活性氢的化合物的残基; Y是通过除去羧基而衍生自至少二价芳族多元羧酸(f)的残基; a是满足以下关系的整数:1 @ a @(芳环-1上的取代基数); Z是通过除去m个活性氢原子而从至少含有m价的含活性氢的化合物衍生的残基; m为1〜10的整数。

    CARBON FIBER BUNDLE
    10.
    发明申请
    CARBON FIBER BUNDLE 有权
    碳纤维布

    公开(公告)号:US20120276383A1

    公开(公告)日:2012-11-01

    申请号:US13515983

    申请日:2011-01-06

    IPC分类号: D01F9/12 B32B27/02 B32B5/02

    摘要: A carbon fiber bundle has carbon fibers and a sizing agent, wherein the sizing agent comprises a water soluble polyurethane resin having an SP value of 11.2 to 13.3, and the sizing agent is deposited on the carbon fibers at a rate of 0.5 to 7% by mass. In another carbon fiber bundle, the sizing agent is composed of the component shown in (A) and the component shown in (B1) or (B2) below, and the sizing agent is deposited on the carbon fibers at a rate of 0.5 to 7% by mass: (A) 73 to 98% by mass of a polyoxyalkylene unit; (B1) 0.5 to 15% by mass of an aromatic ester unit, 1.5 to 10% by mass of an aromatic urethane unit; and (B2) 0.5 to 10% by mass of an aromatic ester unit, 1.5 to 11% by mass of an aliphatic urethane unit.

    摘要翻译: 碳纤维束具有碳纤维和上浆剂,其中上浆剂含有SP值为11.2〜13.3的水溶性聚氨酯树脂,上浆剂以0.5〜7%的比率沉积在碳纤维上,通过 质量 在另一种碳纤维束中,施胶剂由(A)所示的成分和下述(B1)或(B2)所示的成分构成,上浆剂以0.5〜7的比例沉积在碳纤维上 质量%:(A)73〜98质量%的聚氧化烯单元; (B1)0.5〜15质量%的芳香族酯单元,1.5〜10质量%的芳香族聚氨酯单元; 和(B2)0.5〜10质量%的芳香族酯单元,1.5〜11质量%的脂肪族聚氨酯单元。