1.
    发明专利
    未知

    公开(公告)号:DE69531641D1

    公开(公告)日:2003-10-09

    申请号:DE69531641

    申请日:1995-03-15

    Abstract: A microcapsule-type curing agent comprises (A) a curing agent for a thermosetting resin and (B) a thermoplastic resin dissolvable in the thermosetting resin by heating. The microcapsule-type curing agent is formed as a particle-like material in which the component (A) is coated with a layer whose main constituent is the component (B) and the mean particle diameter of which is in the range of 0.1 to 20 mu m. By using the microcapsule-type curing agent, a thermosetting resin composition and a prepreg which are good in storage stability at a room temperature and excellent in thermal resistance of a cured product made therefrom can be obtained. Further, a fiber reinforced composite material obtained using this thermosetting resin composition is excellent in curing uniformity and thermal resistance.

    2.
    发明专利
    未知

    公开(公告)号:DE69526997D1

    公开(公告)日:2002-07-18

    申请号:DE69526997

    申请日:1995-03-21

    Abstract: A prepreg precursor comprising a carbon fiber woven fabric having applied to the fabric from 0.5 to 10 wt% of a stabilizer material for rendering stable the structural form of the fabric. Prepregs can then be produced using the woven fabric. The undesired settlement, into the prepreg of matrix resin with which the fabric is impregnated in order to produce the prepreg and which is originally present on the surface of the woven fabric, is thus prevented. Hence, compared with a prepreg prepared using conventional woven fabric, a prepreg prepared by using the woven fabric of the invention can hold its tackiness for a long time and can be used to produce a fiber reinforced composite material excellent in smoothness without being devoid of the resin on the surface.

    3.
    发明专利
    未知

    公开(公告)号:DE69531641T2

    公开(公告)日:2004-07-01

    申请号:DE69531641

    申请日:1995-03-15

    Abstract: A microcapsule-type curing agent comprises (A) a curing agent for a thermosetting resin and (B) a thermoplastic resin dissolvable in the thermosetting resin by heating. The microcapsule-type curing agent is formed as a particle-like material in which the component (A) is coated with a layer whose main constituent is the component (B) and the mean particle diameter of which is in the range of 0.1 to 20 mu m. By using the microcapsule-type curing agent, a thermosetting resin composition and a prepreg which are good in storage stability at a room temperature and excellent in thermal resistance of a cured product made therefrom can be obtained. Further, a fiber reinforced composite material obtained using this thermosetting resin composition is excellent in curing uniformity and thermal resistance.

    4.
    发明专利
    未知

    公开(公告)号:DE60013527D1

    公开(公告)日:2004-10-14

    申请号:DE60013527

    申请日:2000-03-10

    Abstract: An object of the invention is to provide an epoxy resin composition having a low viscosity around a room temperature and excellent reinforcing fiber impregnating properties, thereby to provide a composite material having excellent heat resistance and mechanical properties including compressive strength. According to the present invention there is provided an epoxy resin composition comprising an aromatic epoxy resin having at least di-functionality, an aromatic amine compound and/or an alicyclic amine compound, wherein 5 minutes after the main agent comprising the epoxy resin and the curing agent comprising the aromatic amine compound and/or the alicyclic amine compound are mixed, the composition shows a viscosity at 25 DEG C in the range of from 1 to 1500 mPas, and Tc, tc, and Tg satisyfy the following equation. Tg ≥ Tc + 20 - k x (Tc - 90) k = 0 when 60 ≤ Tc

    6.
    发明专利
    未知

    公开(公告)号:DE60013527T2

    公开(公告)日:2005-09-22

    申请号:DE60013527

    申请日:2000-03-10

    Abstract: An object of the invention is to provide an epoxy resin composition having a low viscosity around a room temperature and excellent reinforcing fiber impregnating properties, thereby to provide a composite material having excellent heat resistance and mechanical properties including compressive strength. According to the present invention there is provided an epoxy resin composition comprising an aromatic epoxy resin having at least di-functionality, an aromatic amine compound and/or an alicyclic amine compound, wherein 5 minutes after the main agent comprising the epoxy resin and the curing agent comprising the aromatic amine compound and/or the alicyclic amine compound are mixed, the composition shows a viscosity at 25 DEG C in the range of from 1 to 1500 mPas, and Tc, tc, and Tg satisyfy the following equation. Tg ≥ Tc + 20 - k x (Tc - 90) k = 0 when 60 ≤ Tc

    7.
    发明专利
    未知

    公开(公告)号:DE69526997T2

    公开(公告)日:2003-01-23

    申请号:DE69526997

    申请日:1995-03-21

    Abstract: A prepreg precursor comprising a carbon fiber woven fabric having applied to the fabric from 0.5 to 10 wt% of a stabilizer material for rendering stable the structural form of the fabric. Prepregs can then be produced using the woven fabric. The undesired settlement, into the prepreg of matrix resin with which the fabric is impregnated in order to produce the prepreg and which is originally present on the surface of the woven fabric, is thus prevented. Hence, compared with a prepreg prepared using conventional woven fabric, a prepreg prepared by using the woven fabric of the invention can hold its tackiness for a long time and can be used to produce a fiber reinforced composite material excellent in smoothness without being devoid of the resin on the surface.

    EPOXY RESIN COMPOSITION FOR FIBER-REINFORCED COMPOSITE MATERIAL, PREPREG, AND FIBER-REINFORCED COMPOSITE MATERIAL

    公开(公告)号:EP0947562A4

    公开(公告)日:2001-01-03

    申请号:EP98947875

    申请日:1998-10-14

    Abstract: In order to realise the objectives stated above, the thermosetting resin composition for carbon fibre reinforced composite materials of the present invention chiefly comprises the following components. (A) Thermosetting resin (B) Compound containing one functional group which can react with thermosetting resin (A) or its curing agent, and a moiety selected from the following formulae (1) to (4) Furthermore, the present invention also relates to a prepreg formed by impregnating reinforcing fibre with the aforesaid resin composition and to carbon fibre reinforced composite materials comprising reinforcing fibre and a cured aforesaid thermosetting resin composition. In accordance with the present invention, there can be obtained a thermosetting resin composition where the adhesion to reinforcing fibre by the cured material and the elastic modulus of the cured material are excellent, and by using this resin composition there can be obtained carbon fibre reinforced composite materials which are excellent in their 0 DEG compressive strength, 90 DEG tensile strength and interlaminar shear strength, and which also have outstanding impact resistance.

    Abstract translation: 为了实现上述目的,本发明的碳纤维增强复合材料用热固性树脂组合物主要包括以下成分。 (A)热固性树脂(B)含有可与热固性树脂(A)或其固化剂反应的一个官能团的化合物和选自下式(1)〜(4)的部分此外,本发明 还涉及通过用上述树脂组合物浸渍增强纤维和由增强纤维和固化的上述热固性树脂组合物制成的碳纤维增强复合材料形成的预浸料。 根据本发明,可以获得热固性树脂组合物,其中通过固化材料对增强纤维的粘附性和固化材料的弹性模量优异,并且通过使用该树脂组合物,可以获得碳纤维增强复合材料 其0°抗压强度,90°拉伸强度和层间剪切强度优异的材料,并且还具有突出的抗冲击性。

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