公开(公告)号：US07386208B2

公开(公告)日：2008-06-10

申请号：US10451952

申请日：2001-12-14

申请人： Claudio Bosisio ,  Massimillano Pavan ,  Mauro Maritano

发明人： Claudio Bosisio ,  Massimillano Pavan ,  Mauro Maritano

IPC分类号： G02B6/44

CPC分类号： G02B6/4494 ,  G02B6/4427

摘要： Optical cable, in particular for submarine connections. A water blocking resin filling composition of reduced hardness is disposed into interstices. Preferably, the resin composition is a polyurethane resin having less than about 35% by weight of a polyol/polyisocyanate mixture and about 60% to about 90% by weight of a mineral oil. The polyurethane resin preferably has less than about 12% by weight of a coupling agent. The cable has an optical core surrounded by a plurality of metallic wires and an outer polymeric sheath. The optical core is of the “tight” type with a plurality of optical fibers embedded into a polymeric matrix disposed around a strength member.

摘要翻译： 光缆，特别适用于海底连接。 将具有降低硬度的防水树脂填充组合物设置在间隙中。 优选地，树脂组合物是具有少于约35重量％的多元醇/多异氰酸酯混合物和约60重量％至约90重量％的矿物油的聚氨酯树脂。 聚氨酯树脂优选具有小于约12重量％的偶联剂。 电缆具有由多根金属线和外部聚合物护套包围的光学芯。 光学芯是“紧”型的，其中多个光纤被嵌入聚合物基体周围设置强度构件。

公开(公告)号：US5055547A

公开(公告)日：1991-10-08

申请号：US352678

申请日：1989-05-10

申请人： Leonardo Fiore ,  Giuseppe Motroni ,  Mauro Maritano

发明人： Leonardo Fiore ,  Giuseppe Motroni ,  Mauro Maritano

IPC分类号： C08G65/02 ,  C08G65/06 ,  C08G65/16 ,  C08G65/22 ,  C09K19/38

CPC分类号： C08G65/16 ,  C09K19/3814

摘要： The present invention relates to copolyethers comprising copolymers of 7,oxa-bicyclo(2,2,1)heptane, and its alkyl-derivatives, with one or more single-ring or condensed-rings cycloaliphatic ethers, comprising the characteristic group; ##STR1## wherein R' is hydrogen and R" is H, a halogen, or an alkyl radical containing a small number of carbon atoms, and which may also be halogen-substituted.If the ether contains one ring only, it contains from 5 to 12 atoms in the ring, and if it contains a condensed-ring system, it contains a total number of from 10 to 18 atoms in the rings.Those copolyethers show a anisotropic behaviour in the molten state, and therefore have liquid-crystal properties.

摘要翻译： 本发明涉及包含7，氧杂双环（2,2,1）庚烷及其烷基衍生物的共聚物与包含该特征基团的一个或多个单环或稠环脂环族醚的共聚醚; 其中R'是氢，R“是H，卤素或含有少量碳原子的烷基，也可以是卤素取代的。 如果醚仅含有一个环，则它在环中含有5至12个原子，如果它含有稠环体系，则其中环的总数为10至18个原子。 这些共聚醚在熔融状态下显示出各向异性的特性，因此具有液晶性。