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    • 2. 发明公开
    • 감열 기록 재료
    • 热记录材料
    • KR1020080048519A
    • 2008-06-02
    • KR1020087007705
    • 2006-05-29
    • 주식회사 쿠라레
    • 지키하라아쓰시
    • B41M5/337C08F16/06
    • B41M5/3372C08F8/44C08F8/12C08F218/08C08F222/02C09D109/08C08K13/02
    • [PROBLEMS] To provide a thermal recording material, which is excellent in color development sensitivity and whiteness of the texture, by preparing a dispersion liquid which has excellent dispersion efficiency, is less likely to cause liquid fogging, and is excellent in dispersion stability and storage stability of the dispersion liquid upon heating. [MEANS FOR SOLVING PROBLEMS] A thermal recording material comprising a support bearing thereon a thermal color development layer containing an electron donating colorless dye and an electron receiving compound, characterized in that the thermal color development layer contains a carboxyl group-containing polyvinyl alcohol resin (A) which has been produced by saponification of a polyvinyl ester produced by polymerization in the presence of aldehydes or ketones and has an absorbance of 0.20 to 0.85 at 280 nm when measured by an ultraviolet absorption spectrum as an aqueous solution having a concentration of 0.1% by weight.
    • [问题]为了提供色彩发现敏感性和织构白度优异的热敏记录材料,通过制备分散效率优异的分散液,不太可能引起喷雾,并且分散稳定性和储存性优异 分散液在加热时的稳定性。 解决问题的手段一种热敏记录材料,其特征在于,含有含羧基的聚乙烯醇树脂(含有发泡性无色染料的热显色层, A),其通过在醛或酮的存在下聚合制备的聚乙烯酯皂化而生成,并且当通过紫外吸收光谱作为浓度为0.1%的水溶液测量时,在280nm处的吸光度为0.20至0.85, 重量。
    • 4. 发明授权
    • 비닐 알콜계 중합체 및 이의 제조방법
    • 乙烯醇聚合物和生产乙烯醇聚合物的方法
    • KR100601014B1
    • 2006-07-19
    • KR1020030046803
    • 2003-07-10
    • 주식회사 쿠라레
    • 구스도다케시지키하라아쓰시후지와라나오키
    • C08F8/12
    • C08F8/12C08F2800/20C08J5/18Y10T428/31786C08F218/08C08F230/08
    • 본 발명에는 실릴 그룹 함유 단량체 단위를 포함하는 비닐 에스테르계 중합체를 비누화함으로써 수득되고, 수학식 1 및 수학식 2를 만족시키며, 또한 이의 4% 수용액의 pH가 4 내지 8임을 특징으로 하는 비닐 알콜계 중합체가 기재되어 있다.

      위의 수학식 1에서,
      P는 비닐 알콜계 중합체의 점도 평균 중합도이고,
      S는 실릴 그룹 함유 단량체 단위의 함유량(mol%)이다.

      위의 수학식 2에서,
      A는 비닐 알콜계 중합체 중의 규소원자의 함유량(단위:ppm)이고,
      B는 수산화나트륨을 함유하는 메탄올로 세정한 다음, 메탄올로 속슬렛(Soxhlet) 추출하여 세정한 비닐 알콜계 중합체 중의 규소원자의 함유량(단위:ppm)이다.
      본 발명의 비닐 알콜계 중합체는 수산화나트륨 등의 알칼리 또는 산을 첨가하지 않아도, 물에 용해시켜 수용액을 제조하는 것이 가능하고, 이러한 수용액의 점도 안정성이 우수하며, 무기물과의 결합력이 우수하고, 무기물과 혼합하여 수득되는 피막의 내수성이 우수한 등의 특징을 갖는다. 본 발명의 비닐 알콜계 중합체는, 잉크젯 기록재나 감열 기록재용의 코팅제에 적합하게 사용된다.
      실릴 그룹, 비닐 에스테르계 중합체, 비누화, 비닐 알콜계 중합체, 잉크젯 기록재, 감열 기록재, 코팅제
    • 7. 发明公开
    • 비닐 알콜계 중합체
    • 含有聚氧乙烯基的单体单元和具体的粘度比,其制备方法,包含聚合物的涂料和使用涂料的胶体产品和喷墨记录材料的乙烯基醇基聚合物
    • KR1020050011712A
    • 2005-01-29
    • KR1020040056868
    • 2004-07-21
    • 주식회사 쿠라레
    • 지키하라아쓰시후지와라나오키
    • C08F216/06C08F216/12
    • C08F8/12C08L71/02C08F293/005
    • PURPOSE: Provided are a vinyl alcohol-based polymer useful for preparing an inkjet record material having an ink collection layer which is free from the crack of surface and has high gloss and excellent ink-absorbing property and transparency, its preparation method, a coating agent containing the polymer, and a pottery product and an inkjet recording material using the coating agent. CONSTITUTION: The vinyl alcohol-based polymer comprises a monomer unit containing a polyoxyalkylene group represented by the formula 1, wherein the polymer has a ratio (η1/η2) of a viscosity (η1) at 60 deg.C to a viscosity (η2) at 40 deg.C of 0.8 or more when the viscosity of a 8 wt% aqueous solution of the polymer is measured by a BL-type viscometer with a rotor rotation number of 60 rpm; if R2 is H, the product (PxS) of a viscosity average degree of polymerization (P) of the polymer and a polyoxyalkylene group-containing monomer unit content (S, mol%) to the total monomer unit in the polymer and the number (n) of an oxyalkylene repeating unit in a polyoxyalkylene group-containing monomer satisfy the four relations represented by n>-0.047(PxS)+25, n>-0.044(PxS)+58, (PxS)>5, and 15
    • 目的:提供一种乙烯醇类聚合物,其用于制备具有不含表面裂纹的油墨收集层并具有优异的油墨吸收性和透明度的油墨收集层的喷墨记录材料,其制备方法,涂布剂 含有聚合物,以及使用该涂布剂的陶瓷制品和喷墨记录材料。 构成:乙烯醇类聚合物包含含有式1表示的聚氧化烯基的单体单元,其中聚合物的粘度(η1)在60℃与粘度(η2)之比(η1/η2) 当通过转子旋转数为60rpm的BL型粘度计测量聚合物的8重量%水溶液的粘度时,在40℃下为0.8以上; 如果R2是H,则聚合物的聚合度和聚氧化烯基单体单元含量(S,mol%)的聚合度的聚合度(P)的聚合度的聚合物的聚合度(P)的聚合物的总聚合度(P)的乘积(PxS) 含有聚氧化烯基的单体中的氧化烯重复单元的n)满足由n> -0.047(PxS)+25,n> -0.044(PxS)+58,(PxS)> 5和15
    • 10. 发明公开
    • 비닐 알콜계 중합체를 포함하는 종이용 도포제와, 이것을 도포한 종이 및 감열지
    • 用于纸和纸的乙烯醇聚合物包覆涂料和涂料代理的热敏纸
    • KR1020100061752A
    • 2010-06-08
    • KR1020107009230
    • 2008-09-19
    • 주식회사 쿠라레
    • 지키하라아쓰시나카마에마사토나카가와가즈키호리고지와타나베미사
    • D21H19/20B41M5/337C08G12/36D21H19/24
    • B41M5/5254B41M5/3372B41M5/44D21H19/20D21H19/24Y10T428/31895
    • This invention provides a vinyl alcohol polymer-containing coating agent for paper, which, despite the fact that a curing step after coating the coating agent onto a paper surface can be omitted, can form a layer (for example, a coating layer or a color developing layer) having excellent water resistance and having no significant susceptibility to yellowing with the elapse of time. The coating agent is an aqueous composition comprising a vinyl alcohol polymer (A) satisfying a formula ";X + 0.2Y > 95", wherein X represents the content of vinyl alcohol units, % by mole; and Y represents the content of ethylene units, % by mole, and an addition condensation product (B) between ethylene urea and glyoxal. In the addition condensation product (B), the content of the terminal aldehyde group per g of the solid is 1.2 to 3.0 (mmol). The weight ratio on a solid basis between the vinyl alcohol polymer (A) and the addition condensation product (B) is in the range of (A) : (B) = 99 : 1 to 50 : 50. In the above formula, X
    • 本发明提供一种含乙烯醇聚合物的纸用涂布剂,尽管可以省略将涂布剂涂布在纸表面上后的固化步骤,但可以形成层(例如,涂层或颜色 显影层),具有优异的耐水性,并且随着时间的流逝对黄变没有显着的敏感性。 涂层剂是包含满足式“X + 0.2Y> 95”的乙烯醇聚合物(A)的水性组合物,其中X表示乙烯醇单元的含量,摩尔% Y表示乙烯单元的含量,摩尔%,乙烯脲与乙二醛之间的加成缩合物(B)。 在加成缩合产物(B)中,每1g固体的末端醛基的含量为1.2〜3.0(mmol)。 乙烯醇聚合物(A)和加成缩合物(B)之间的固体重量比在(A):(B)= 99:1〜50:50的范围内。在上式中,X <99.9,0