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    • 5. 发明专利
    • Method for manufacturing a crosslinked polyolefin foam
    • 制造交联聚烯烃泡沫的方法
    • JP2014144999A
    • 2014-08-14
    • JP2013012685
    • 2013-01-25
    • Sanwa Kako Co Ltd三和化工株式会社Kyoto City京都市
    • TAKIMOTO TAKESHISAWARA MASAAKIKURATA SEIICHIITO AKIHIROSENBA TAKESHI
    • C08J9/06C08L23/00
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a polyolefin foam emitting scarce odors, using an inorganic foaming agent, and having an expansion ratio of 6 or above.SOLUTION: A method for manufacturing a crosslinked polyolefin foam in which a foam having an expansion ratio of 6 or above is prepared by heating and expanding a crosslinkable expandable composition obtained by adding, to a polyolefin resin, a foaming agent, namely a compound generating a carbon dioxide gas and steam as a result of decomposition in a heated state, and a crosslinking agent and then kneading the resulting admixture and in which the foam is treated, following the passage of at least 24 hours since the preparation thereof as a method for restoring a shrunk foam, for 1-48 hours within a high-pressure nitrogen gas or high-pressure air atmosphere of 0.2 MPa to 20 MPa at or above 35°C and at or below the softening point of the polyolefin resin so as to restore the shrunk foam is capable of realizing the goal of obtaining a polyolefin foam emitting scarce odors, using an inorganic foaming agent, and having an expansion ratio of 6 or above.
    • 要解决的问题:提供一种使用无机发泡剂制造发泡稀臭的聚烯烃泡沫体,其膨胀比为6以上的方法。解决方案:一种制造交联聚烯烃泡沫体的方法,其中泡沫体具有 通过将通过向聚烯烃树脂中加入发泡剂即即由加热状态分解而产生二氧化碳气体和蒸汽的化合物而得到的交联性发泡性组合物进行加热扩
      展,制备6以上的发泡倍率, 交联剂,然后捏合所得混合物,其中泡沫处理后,自制备后至少24小时通过,作为恢复收缩泡沫的方法,在高压氮气内进行1-48小时 或高于或等于35℃的0.2MPa〜20MPa的高压空气气氛和聚烯烃树脂的软化点处于或低于聚烯烃树脂的软化点,以使恢复收缩泡沫能够实现 获得使用无机发泡剂发泡稀释气味并具有6或更高的膨胀比的聚烯烃泡沫的目的。
    • 7. 发明专利
    • Molded body for dental purpose and resin material for dental purpose
    • 用于牙科用途的成型体和用于牙科用途的树脂材料
    • JP2005060353A
    • 2005-03-10
    • JP2003296111
    • 2003-08-20
    • Kazuo KitagawaKyoto IchiNisshin:KkTakeshi Senba京都市健 仙波和男 北川株式会社ニッシン
    • AKEDA YOSHIHITOKITAGAWA KAZUOSENBA TAKESHI
    • A61K6/00A61K6/087
    • PROBLEM TO BE SOLVED: To provide a molded body for dental purpose and a resin material for dental purpose that have excellent safety without anxiety of elution of bisphenol-A and satisfy the physical properties that are required in denture base, tentatively covered dental crown, artificial teeth or the like.
      SOLUTION: The molded body for dental purpose according to this invention is mainly composed of a copolymerized polyester resin (PET-G) including the polyethylene terephthalate (PET) units and the poly-1,4-dimethylenecyclohexane terephthalate (PCT) units and of polyethylene naphthalate (PEN) at a weight ratio of (20 to 90)/(80 to 10). The resin material for dental purpose according to this invention has excellent heat resistance to be used even at 100°C. Further, it has 1.5 fold flexural strength that of PET-G. It can be colored to desired color as a denture base without damage to transparency and shows good adhesion to acrylic resin, too. Fibrous reinforcing agent and other polyester resin also may be admixed to this resin material.
      COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:为了提供用于牙科用途的成型体和用于牙科用途的树脂材料,其具有优异的安全性,而不会双重A的洗脱焦虑并且满足假牙基底所需的物理性能,暂时覆盖的牙齿 冠,人造牙等。 解决方案:根据本发明的用于牙科用的成型体主要由包括聚对苯二甲酸乙二醇酯(PET)单元和聚-1,4-二甲基环己烷对苯二甲酸酯(PCT)单元的共聚聚酯树脂(PET-G)组成 和(20〜90)/(80〜10)的重量比的聚萘二甲酸乙二醇酯(PEN)。 根据本发明的用于牙科用途的树脂材料即使在100℃也具有优异的耐热性。 此外,它具有PET-G的1.5倍弯曲强度。 它可以着色为所需的颜色作为假牙基底,而不损害透明度,并且也表现出与丙烯酸树脂的良好粘附性。 纤维增强剂和其它聚酯树脂也可以与该树脂材料混合。 版权所有(C)2005,JPO&NCIPI