公开(公告)号：WO1991000884A1

公开(公告)日：1991-01-24

申请号：PCT/US1990003692

申请日：1990-07-05

Applicant: HEXCEL CORPORATION

Inventor： HEXCEL CORPORATION ,  BARON, Kenneth, S. ,  LEE, Frank, W. ,  BRINKERHOFF, Susan, M. ,  McKINNEY, Stella, M.

IPC: C08G18/58

CPC classification number: B29C73/10 ,  B29K2063/00 ,  B29K2105/06 ,  C08G18/58 ,  C08G18/7678 ,  C08G18/808 ,  C08G59/686

Abstract: A fiber reinforced resin matrix composite material repair system is provided, which critically employs a resin comprising a catalyst of formula (I), with a multifunctional epoxy resin, the resin system being sealed in a water-proofed environment prior to being coated onto a fiber reinforcement. The coated fiber reinforcement is applied over the damaged area, the damaged portion having been removed, and the surrounding surface smoothed. An adhesive is applied to the remaining surface, prior to application of the patch. The resulting patch, which may further include thermoplastic toughening agents and an enhancer, can be directly cured at temperatures below 212°F to give physical properties similar to the original material.

公开(公告)号：WO1989007116A1

公开(公告)日：1989-08-10

申请号：PCT/US1989000437

申请日：1989-02-03

Applicant: HEXCEL CORPORATION

Inventor： HEXCEL CORPORATION ,  CASE, Barton, Carr

IPC: C08G18/08

CPC classification number: C08G18/8051 ,  C08G18/3243 ,  C08G18/36

Abstract: A urea-modified polyurethane having excellent characteristics is prepared by the reaction between a polyisocyanate and a polyol in the presence of a diamine having formula (I), in which R and R are independently straight-chain C2-C6 alkyl, and m and n are independently either 1 or 2. The preferred polyol is castor oil, and in preferred methods the reaction is carried out by first forming a prepolymer of the polyisocyanate with the polyol, and then curing this with a solution of the diamine in a further amount of the polyol.

Abstract translation: 在具有式（I）的二胺存在下，通过多异氰酸酯与多元醇的反应制备具有优异特性的脲改性聚氨酯，其中R 1和R 2独立地为直链C 2 -C 6 烷基，m和n独立地为1或2.优选的多元醇为蓖麻油，在优选的方法中，通过首先将多异氰酸酯的预聚物与多元醇形成，然后用 二胺在另外量的多元醇中。

公开(公告)号：WO1988002011A1

公开(公告)日：1988-03-24

申请号：PCT/US1987002309

申请日：1987-09-09

Applicant: HEXCEL CORPORATION

Inventor： HEXCEL CORPORATION ,  LEE, Kyu, Wang

IPC: C08G18/14

CPC classification number: C08J9/02 ,  B29K2079/00 ,  C08G18/346 ,  C08G18/674 ,  C08G18/6765 ,  C08G18/8183 ,  C08J2379/08

Abstract: Open-cell structures are filled with polyimide foam formed in place by the use of a foam precursor in powdered form comprised of a combination of (a) the reaction product of an excess of organic polyisocyanate and a member selected from the group consisting of furfuryl alcohol and condensation products thereof, and (b) an organic polycarboxylic compound containing two carboxylic anhydride groups. The precursor is prepared by combining the species under conditions which favor the reaction of the furfuryl alcohol with the polyisocyanate, but not the polyimide-forming reaction. The polyimide-forming reaction itself is then performed by adding preselected amounts of the powdered precursor, depending on the desired ultimate density of the foam, to each cell of the open-cell structure, then heating to initiate the polyimide reaction, and permitting the carbon dioxide generated by the reaction to escape while confining the resulting foam to the cells.

公开(公告)号：WO1986004028A1

公开(公告)日：1986-07-17

申请号：PCT/US1986000025

申请日：1986-01-06

Applicant: HEXCEL CORPORATION

Inventor： HEXCEL CORPORATION ,  GOTTWALD, William, H. ,  BANDAK, Michel, N. ,  BITZER, Thomas, N.

IPC: B60R19/04

CPC classification number: E01F15/148 ,  B60R19/00 ,  B60R2019/005 ,  F16F7/121

Abstract: A mounting system for a vehicle-mounted impact absorption box (10) filled with a collapsible open cell network (11) provides a lessened tendency for disintegration when subjected to the vibrations of the vehicle. The system contains a bolt (32) surrounded by a region of transverse cells (62), with the bolt bonded to the cell walls and passing therethrough in a generally perpendicular direction. A further feature of the system is a pivot bracket constructed in two parts - a rigid portion (70) and a pivot arm (71), the latter stabilized by springs (74, 75) which absorb torsional impulses on the arm arising from the vehicle vibrations. These two features work in conjunction with each other in reducing shock damage to the interior of the box, and thereby increase the life expectancy of the box as a whole.

公开(公告)号：WO1986001397A1

公开(公告)日：1986-03-13

申请号：PCT/US1985001577

申请日：1985-08-21

Applicant: HEXCEL CORPORATION

Inventor： HEXCEL CORPORATION ,  LEE, Kyu-Wang ,  HEDGES, Winston, L. ,  BARON, Kenneth, S.

IPC: A61F05/04

CPC classification number: C08G18/2081 ,  A61L15/12 ,  C08G18/089 ,  C08G18/10 ,  C08G18/1875 ,  C08G18/20 ,  C08L75/04 ,  C08G18/302

Abstract: Stabilized, catalyzed polyurethane systems which are comprised of a polyurethane prepolymer, a tertiary amine catalyst and a stabilizing agent. To extend shelf life, and lend stability to the composition, the stabilizing agent is comprised of methane sulfonic acid. The stabilizer is suitable for use with most polyurethane systems catalyzed by tertiary amines, and produces longer shelf life or stability with lesser amounts than conventional stabilizers. In a particular embodiment requiring extended shelf life but quick curing times, a catalyst yielding these qualities is bis(2,6-dimethylmorpholino)diethylether. The catalyst, when incorporated in a polyurethane prepolymer coated on a flexible substrate, can be immersed in water, the material thereafter being wrapped about the portion of the patient's body to be immobilized, and cures rapidly, within about 15 minutes. The catalyst can optionally be combined with a stabilizer, such as methane sulfonic acid. When stored in the absence of moisture, such systems have exceedingly long shelf life.

公开(公告)号：WO1985004323A1

公开(公告)日：1985-10-10

申请号：PCT/US1985000540

申请日：1985-03-29

Applicant: HEXCEL CORPORATION

Inventor： HEXCEL CORPORATION ,  AINSWORTH, Robert, D. ,  DEVANATHAN, Thirumalai, N., C. ,  LIN, Steve, T., C.

IPC: A61F01/00

CPC classification number: A61L27/18 ,  A61F2/30965 ,  A61F2/36 ,  A61F2002/30009 ,  A61F2250/0028 ,  A61L27/443 ,  Y10S623/901

Abstract: An orthopedic device (10) formed from a composite material (42, 44) which is reinforced with continuous filament or carbon fibers (26) to provide the material with high flexural strength, hydrolytic stability and a medical grade quality. A preferred embodiment of the orthopedic device is a hip joint prosthesis in which the stem and spherical head can be formed from a composite block (54). In the alternative, the stem alone can be formed from the block and a head of another material attached to one end of the stem. One embodiment of the method includes first forming a sheet of carbon fibers (40) by wrapping carbon fiber tows (26) spirally around a drum (38) after passing the tows through a thermoplastic resin (32) which serves as a bonding agent then, rectangular pieces (42, 44) of the carbon fiber-polymers sheets are combined with one another to form a stack. Pressure is exerted on the stack in the presence of heat to form a composite block (54). Following formation of the block, the block is machined to form the desired orthopedic device. In another embodiment of the method, sheets of carbon fibers held together by a polymer are rolled into a cylinder, then molded under heat and pressure. The resulting composite is then machined to form the orthopedic device.

Abstract translation: 1.一种由复合材料（42,44）形成的矫形装置（10），其由连续细丝或碳纤维（26）加强，以提供具有高弯曲强度，水解稳定性和医学级质量的材料。 矫形装置的优选实施例是髋关节假体，其中杆和球形头可以由复合块（​​54）形成。 在替代方案中，单独的阀杆可以由块体和连接到杆的一端的另一种材料的头部形成。 该方法的一个实施方案包括首先在使丝束通过用作粘合剂的热塑性树脂（32）之后，通过在滚筒（38）​​周围螺旋地缠绕碳纤维丝束（26）来形成碳纤维片（40） 将碳纤维聚合物片的矩形片（42,44）彼此组合以形成叠层。 在存在热的情况下在堆上施加压力以形成复合块（54）。 在形成块之后，块被加工以形成所需的矫形装置。 在该方法的另一个实施方案中，由聚合物保持在一起的碳纤维片卷成圆筒，然后在加热和加压下成型。 然后将所得复合材料加工成整形外科装置。

公开(公告)号：WO1984004311A1

公开(公告)日：1984-11-08

申请号：PCT/US1984000568

申请日：1984-04-16

Applicant: HEXCEL CORPORATION

Inventor： HEXCEL CORPORATION ,  LIN, Steve

IPC: C08G63/08

CPC classification number: C08G63/08 ,  A61F2/08 ,  A61L27/18 ,  A61L27/443 ,  C08L67/04 ,  C08K3/04 ,  A61L27/58

Abstract: A bioabsorbable copolymer of lactide (I) and epsilon caprolactone (II) comprising a major amount of epsilon caprolactone (II) and a minor amount of lactide (I) a method of making the same; a composition of said polymer and at least one substrate of a plurality of carbon fibres; surgical articles of said composition; and a method of repairing ligaments and tendons are disclosed. The general formulas of the copolymers are formulas (I) and (II).

Abstract translation: 丙交酯（I）和ε-己内酯（II）的生物可吸收共聚物，其包含主要量的ε己内酯（II）和少量的丙交酯（I），其制备方法; 所述聚合物的组合物和多个碳纤维的至少一个基材; 所述组合物的外科用品; 并公开了修复韧带和腱的方法。 共聚物的通式为式（I）和（II）。

公开(公告)号：WO1983001736A1

公开(公告)日：1983-05-26

申请号：PCT/US1982001626

申请日：1982-11-18

Applicant: HEXCEL CORPORATION

Inventor： HEXCEL CORPORATION ,  BARON, Kenneth, S. ,  WOOD, David, W.

IPC: A61F05/04

CPC classification number: D04B21/12 ,  A61F13/04 ,  A61L15/12 ,  C08G18/10 ,  C08G18/797 ,  D10B2509/024 ,  C08L75/04 ,  C08G18/302

Abstract: Un matériau de bandage permet de former sur place une pièce moulée orthopédique et comprend un support en tissu souple à large maille composé d'un tricot de fil présentant une résistance et un taux d'élasticité élevés ainsi qu'une faible absorption d'humidité, le support en tissu possédant des ouvertures de dimensions transversales relativement importantes, le matériau de bandage étant recouvert d'une composition polymère comprenant un prépolymère de polyuréthane polymérisable dans l'eau froide et comprenant le produit de réaction d'un diol d'éther de polyalkylène, un triol d'éther de polyalkylène et un diisocianate. Le diisocianate modifié est un mélange de 4,4'-méthyldiphényldiisocianate (MDI) et MDI modifié avec un carbodihymide. Les étapes de la réaction sont les suivantes:$(5,)$où R représente$(3,)$.

公开(公告)号：US11312069B2

公开(公告)日：2022-04-26

申请号：US16604934

申请日：2018-04-25

Applicant: Hexcel Corporation

Inventor： Scott DeFelice ,  Anthony DeCarmine

IPC: B29C64/153 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/295 ,  B29C64/393 ,  B29C64/268 ,  B29K71/00

Abstract: A system for producing an object from a powder by selective laser sintering. The system includes a chamber and a support platform in the chamber. A spreader applies a layer of powder to a bed surface. An irradiation source irradiates select points in the powdered layer prepared on the support platform. A radiant heater heats at least a portion of the bed surface. A temperature sensor monitors the temperature of select points on the bed surface. A controller adjusts the radiant heater in response to temperature data provided by the temperature sensor.

公开(公告)号：US20210140860A1

公开(公告)日：2021-05-13

申请号：US16682762

申请日：2019-11-13

Applicant: Hexcel Corporation

Inventor： Whitney Kline ,  Alden Winn

IPC: G01N3/08 ,  B29C64/153

Abstract: A system and method for identifying test bars formed during a selective laser sintering build. A part cake is formed during a selective laser sintering build. The part cake comprises parts formed from a powder by selective laser sintering and unsintered powder around the formed parts. The parts include test bars for performing material testing. Each test bar includes a plurality of indentations in a first grip section and a second grip section. The plurality of indentations are arranged in a information providing pattern that is adapted to be readable after the test part is removed from the part cake.