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1. 发明授权

US4658010A Polyimide adhesive and method of making from lactam, dianhydride mixture and diamine 失效
标题翻译：聚酰亚胺粘合剂和由内酰胺，二酐混合物和二胺制备的方法
公开(公告)号：US4658010A
公开(公告)日：1987-04-14
申请号：US727127
申请日：1985-04-25
申请人： John V. Long , John Gagliani
发明人： John V. Long , John Gagliani
IPC分类号： C08L79/08 , C08G73/00 , C08G73/10 , C08J5/04 , C08J5/12 , C08J5/24 , C09J179/08 , H01B3/30 , C08G69/14
CPC分类号： C08G73/1032 , C08G73/1007 , C08G73/1028 , C09J179/08 , Y10T428/31721
摘要： Methods of making modified polyimide adhesives and laminating compositions. These adhesives are also particularly useful as the matrix material in high strength fiber reinforced composites. The adhesive compositions are prepared by initially reacting an oxoimine with one or more tetracarboxylic acid dianhydrides, which is primarily 1, 2, 3, 4-butanetetracarboxylic acid dianhydride. The resulting bisimide is dissolved in a non-reactive solvent and a suitable diamine is added to react with the bisimide, producing a liquid resin solution which is essentially a polyamide resin solution. This solution is useful as an adhesive or a fiber composite matrix which can be cured to a polyimide at moderate processing temperatures. The final adhesive bond or matrix is found to be flexible, strong and very resistant to flame, high temperatures, oils and solvents.
摘要翻译：制备改性聚酰亚胺粘合剂和层压组合物的方法。这些粘合剂也特别用作高强度纤维增强复合材料中的基体材料。粘合剂组合物通过首先使氧化亚胺与一种或多种主要为1,2,3,4丁烷四羧酸二酐的四羧酸二酐反应来制备。将所得双酰亚胺溶解在非反应性溶剂中，并加入合适的二胺以与双酰亚胺反应，产生基本上为聚酰胺树脂溶液的液体树脂溶液。该溶液可用作粘合剂或纤维复合基质，其可在适中的加工温度下固化至聚酰亚胺。发现最终的粘合剂粘合剂或基质是柔性的，坚固的并且非常耐火焰，高温，油和溶剂。

2. 发明授权

US4639343A Forming techniques for shaping polyimide foams 失效
标题翻译：聚酰亚胺泡沫成型技术
公开(公告)号：US4639343A
公开(公告)日：1987-01-27
申请号：US736241
申请日：1985-05-20
申请人： John V. Long , John Gagliani
发明人： John V. Long , John Gagliani
IPC分类号： B29C44/00 , B29B11/02 , B29B11/14 , B29C44/04 , B29C51/00 , B29C67/20 , B29K79/00 , B29K105/04 , B29L7/00 , C08J9/02 , C08J9/34 , B29C43/00 , B29C67/22
CPC分类号： B29B11/14 , B29B11/02 , B29C44/0407 , B29C44/0446 , B29C51/002 , B29K2079/00 , B29K2105/04 , B29K2105/256 , Y10S264/14 , Y10T428/249988 , Y10T428/249989
摘要： A method of re-shaping polyimide and modified polyimide foam sheets into selected shapes. Polyimide foam sheets can be made by any of a number of methods, some of which produce sheets of selected thicknesses directly and others of which produce blocks or buns of foam which are sliced into sheets. A sheet is placed in a mold having the desired configuration, such as a half-pipe. The sheet is compressed to about 0 to 99% of the original thickness with heating of one or both major surfaces of the sheet to a temperature of from about 250.degree. to 320.degree. C. for about 0.5 to 5 minutes. Upon removal from the mold, the polyimide foam is found to be self-supporting and to have taken on the mold shape. A moisture impervious densified skin is found on the heated side(s).
摘要翻译：将聚酰亚胺和改性聚酰亚胺泡沫片重新定型成选定形状的方法。聚酰亚胺泡沫片材可以通过多种方法中的任何一种制成，其中一些方法直接生产选定厚度的片材，其中一些生产切成片材的块状泡沫块或块状泡沫。将片材放置在具有所需构造的模具中，例如半管。通过将片材的一个或两个主表面加热至约250至320℃的温度约0.5至5分钟，将片材压缩至原始厚度的约0至99％。当从模具中取出时，发现聚酰亚胺泡沫是自支撑的并且具有模具形状。在加热面上发现不透湿的致密皮肤。

3. 发明授权

US4546115A Polyimide compositions and foams and methods of making same 失效
公开(公告)号：US4546115A
公开(公告)日：1985-10-08
申请号：US705129
申请日：1985-02-25
申请人： John Gagliani , John V. Long
发明人： John Gagliani , John V. Long
IPC分类号： C08G73/00 , C08G73/10 , C08J9/02
CPC分类号： C08J9/02 , C08G73/1025 , C08G73/1028 , C08G73/1032 , C08J2379/08
摘要： Methods of making modified polyimide compositions and the resulting compositions. A polyimide forming material is prepared by treating an aromatic dianhydride with an esterifying solvent, then adding a suitable diamine. In order to obtain a foam which is non-friable and resistant to repeated compressive forces, the selected diamine must contain an aliphatic moiety in the chain. This material is dried to a powder or film. A foam is produced by heating the material to reaction temperature for a period sufficient to produce a stable foam. The material melts, then spontaneously expands into a foam which becomes self supporting and cures to a resilient, flexible non-friable foam.

4. 再颁专利

USRE32255E Modified polyimide foams and methods of making same 失效
公开(公告)号：USRE32255E
公开(公告)日：1986-09-30
申请号：US565574
申请日：1983-12-27
申请人： John Gagliani , John V. Long
发明人： John Gagliani , John V. Long
IPC分类号： C08J9/02
CPC分类号： C08J9/02 , C08J2379/08
摘要： Methods of making modified polyimide/polyimide-amide foams and the resulting compositions. An N-substituted aliphatic imide is prepared by reacting a suitable aromatic dianhydride with a suitable oxoimine. A polyimide forming material is prepared by dissolving the N-substituted aliphatic imide in an esterifying solvent, then adding a suitable aromatic diamine. This material is dried to a powder or film. A foam is produced by heating the material to reaction temperature for a period sufficient to produce a stable foam. The material melts, then spontaneously expands into a foam which becomes self supporting and cures to a resilient flexible foam. Depending upon heating conditions, a polyimide, polyimide-amide or mixture thereof may be produced, resulting in foams having varying physical properties.

5. 发明授权

US4518717A Low density, modified polyimide foams and methods of making same 失效
公开(公告)号：US4518717A
公开(公告)日：1985-05-21
申请号：US549618
申请日：1983-11-07
申请人： John V. Long , John Gagliani
发明人： John V. Long , John Gagliani
IPC分类号： C08G73/10 , C08J9/02 , C08J9/34 , C08L79/08 , C08J9/12
CPC分类号： C08J9/34 , C08G73/1028 , C08J9/02 , C08L79/08 , C08J2379/08
摘要： Methods of making low density modified polyimide/polyimide-amide foams and the resulting compositions. An N-substituted aliphatic imide is prepared by reacting a suitable aromatic dianhydride with a suitable oxime. A polyimide forming material is prepared by dissolving the N-substituted aliphatic imide in an esterifying solvent, then adding a suitable aromatic diamine. This material is dried to a powder. A suitable hydrated compound which is stable up to at least about 100.degree. C. is mixed with the powder. A foam is then produced by heating the material to reaction temperature for a period sufficient to produce a stable foam. The material melts, then spontaneously expands into a foam which becomes self supporting and cures to a resilient flexible foam. The addition of the hydrated compound is found to result in an exceptionally low density foam. Depending upon heating conditions, a polyimide, polyimide-amide or mixture thereof may be produced, resulting in foams having selectively variable physical properties.

6. 再颁专利

USRE31756E Modified polyimide foams and methods of making same 失效
公开(公告)号：USRE31756E
公开(公告)日：1984-12-04
申请号：US565574
申请日：1983-12-27
申请人： John Gagliani , John V. Long
发明人： John Gagliani , John V. Long
IPC分类号： C08J9/02
CPC分类号： C08J9/02 , C08J2379/08
摘要： Methods of making modified polyimide/polyimide-amide foams and the resulting compositions. An N-substituted aliphatic imide is prepared by reacting a suitable aromatic dianhydride with a suitable oxoimine. A polyimide forming material is prepared by dissolving the N-substituted aliphatic imide in an esterifying solvent, then adding a suitable aromatic diamine. This material is dried to a powder or film. A foam is produced by heating the material to reaction temperature for a period sufficient to produce a stable foam. The material melts, then spontaneously expands into a foam which becomes self supporting and cures to a resilient flexible foam. Depending upon heating conditions, a polyimide, polyimide-amide or mixture thereof may be produced, resulting in foams having varying physical properties.

7. 发明授权

US4476254A Low density, modified polyimide foams and methods of making same 失效
标题翻译：低密度，改性聚酰亚胺泡沫及其制备方法
公开(公告)号：US4476254A
公开(公告)日：1984-10-09
申请号：US587016
申请日：1984-03-07
申请人： John V. Long , John Gagliani
发明人： John V. Long , John Gagliani
IPC分类号： C08G73/10 , C08J9/02 , C08J9/34 , C08L79/08 , C08J9/32
CPC分类号： C08J9/34 , C08G73/1028 , C08J9/02 , C08L79/08 , C08J2379/08
摘要： Methods of making low density modified polyimide/polyimide-amide foams and the resulting compositions. An N-substituted aliphatic imide is prepared by reacting a suitable aromatic dianhydride with a suitable oxime. A polyimide forming material is prepared by dissolving the N-substituted aliphatic imide in an esterifying solvent, then adding a suitable aromatic diamine. This material is dried to a powder. A suitable hydrated compound which is stable up to at least about 100.degree. C. is mixed with the powder. A foam is then produced by heating the material to reaction temperature for a period sufficient to produce a stable foam. The material melts, then spontaneously expands into a foam which becomes self supporting and cures to a resilient flexible foam. The addition of the hydrated compound is found to result in an exceptionally low density foam. Depending upon heating conditions, a polyimide, polyimide-amide or mixture thereof may be produced, resulting in foams having selectively variable physical properties.
摘要翻译：制备低密度改性聚酰亚胺/聚酰亚胺酰胺泡沫的方法和所得组合物。通过使合适的芳族二酐与合适的肟反应制备N-取代的脂族酰亚胺。通过将N-取代的脂族酰亚胺溶解在酯化溶剂中，然后加入合适的芳族二胺制备聚酰亚胺形成材料。将该材料干燥成粉末。将稳定至少约100℃的合适的水合化合物与粉末混合。然后通过将材料加热至反应温度足以产生稳定的泡沫的时间来生产泡沫。材料熔化，然后自发地膨胀成泡沫，其变为自支撑并固化成弹性柔性泡沫。发现水合化合物的添加导致特别低密度泡沫。根据加热条件，可以生产聚酰亚胺，聚酰亚胺 - 酰胺或其混合物，导致具有选择性变化的物理性质的泡沫。

8. 发明授权

US4425441A Closed cell polyimide foams and methods of making same 失效
标题翻译：闭孔聚酰亚胺泡沫及其制备方法
公开(公告)号：US4425441A
公开(公告)日：1984-01-10
申请号：US465514
申请日：1983-02-10
申请人： John Gagliani , John V. Long
发明人： John Gagliani , John V. Long
IPC分类号： B32B5/18 , C08G73/10 , C08J9/02 , C08J9/16 , C08J9/236 , B01J13/02 , B29D9/00
CPC分类号： C08J9/236 , B32B5/18 , C08G73/1028 , C08J9/02 , C08J9/16 , C08J2379/08
摘要： A high temperature and flame resistant closed cell polyimide foam material and methods of making the foam. An aromatic tetracarboxylic acid dianhydride is reacted with an oxomine to produce an N-substituted imide, which is then esterified with a suitable alcohol. The resulting liquid is dried and the dry residue is reduced to a uniform powder having particles with diameters generally in the 0.5 to 10 mm. range. The powder is preferably further dried, either before or after final size reduction, in a moderate vacuum at moderate temperature to remove any excess residual alcohol. The powder spontaneously expands to form a closed cell foam when heated to a temperature in the range of about 90.degree. to 150.degree. C. for a suitable period. When the powder is expanded in a closed mold, a well consolidated, uniform, closed cell foam product results. When expanded in an unrestricted manner, closed cell "macroballoons" having average diameters between about 0.4 to 15 mm. result. The closed cell foam produced has excellent flexibility and resistance to heat and flame, and does not shrink appreciably when exposed to flame.
摘要翻译：高温和阻燃闭孔聚酰亚胺泡沫材料和制造泡沫的方法。使芳族四羧酸二酐与氧代胺反应以产生N-取代的酰亚胺，然后用合适的醇酯化。将所得液体干燥，并将干燥残余物还原成具有通常为0.5至10mm直径的颗粒的均匀粉末。范围。优选在中等温度的中等真空中，在最终尺寸减小之前或之后进一步干燥粉末以除去任何多余的残余醇。当加热到约90℃至150℃的温度一段合适的时间时，粉末自发膨胀以形成闭孔泡沫。当粉末在封闭的模具中膨胀时，产生良好的固结均匀的闭孔泡沫产品。当以不受限制的方式膨胀时，具有约0.4至15mm之间的平均直径的闭孔“宏观气球”。结果。产生的闭孔泡沫具有优异的柔韧性和耐热和耐火性，并且当暴露于火焰时不会明显收缩。

9. 发明授权

US4070312A Closed cell polyimides 失效
标题翻译：闭孔聚酰亚胺
公开(公告)号：US4070312A
公开(公告)日：1978-01-24
申请号：US581136
申请日：1975-05-27
申请人： John Gagliani , John V. Long
发明人： John Gagliani , John V. Long
IPC分类号： C08J9/12
CPC分类号： C08J9/125 , C08J2379/08 , Y10S521/918
摘要： Closed cell polyimide foams. Methods of making such foams from precursors derived from a benzophenonetetracarboxylic acid diester and a mixture of diamines in which the precursor is molded to shape and cured, hydrated, and heated until a porous, closed cell structure develops.
摘要翻译：闭孔聚酰亚胺泡沫。从二苯甲酮四羧酸二酯衍生的前体和二元胺的混合物制备这种泡沫的方法，其中前体被模制成型并固化，水合和加热，直到形成多孔的闭孔结构。

10. 发明授权

US4842949A Methods and compositions for producing polyimide adhesive bonds 失效
标题翻译：生产聚酰亚胺粘合剂的方法和组合物
公开(公告)号：US4842949A
公开(公告)日：1989-06-27
申请号：US746867
申请日：1985-06-20
申请人： John Gagliani , John V. Long
发明人： John Gagliani , John V. Long
IPC分类号： C08J9/02
CPC分类号： C08J9/02 , C08J2379/08 , Y10T428/31721
摘要： Methods and compositions for producing imide precursors and polyimide coating and adhesives. Basically a mixture of an oxoimine such as caprolactam, a dianhydride such as 3,3', 4,4'-benzophenone tetracarboxylic acid dianhydride and a solvent such as dimethyl formamide is heated to a temperature of about 60.degree. to 120.degree. C. for a suitable period, then the mixture is cooled and a suitable diamine is added to produce the imide precursor. This mixture may be dried to a powder form or may be used directly as a coating or adhesive. The final polyimide is produced by heating the precursor to a suitable temperature over an appropriate period.
摘要翻译：用于生产酰亚胺前体和聚酰亚胺涂料和粘合剂的方法和组合物。基本上将氧化亚胺如己内酰胺，二酐如3,3'，4,4'-二苯甲酮四羧酸二酐和溶剂如二甲基甲酰胺的混合物加热至约60℃至120℃，合适的时间，然后将混合物冷却并加入合适的二胺以产生酰亚胺前体。该混合物可以干燥成粉末形式，或者可以直接用作涂层或粘合剂。通过在合适的时间内将前体加热到合适的温度来制备最终的聚酰亚胺。

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