摘要:
A method is described for producing dispersions of polyurea and the like in polyols of increased stability by polymerizing an amine and an isocyanate in the presence of an aminoalcohol, typically an aminopolyol, having the following formula: ##STR1## wherein A and A' are individually connective atoms which may be same or different, and are selected from the group consisting of carbon and oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is a member selected from the group consisting of nitrogen, NR, R being alkyl or aryl, or CR', R' being hydrogen, alkyl or aryl; D is a member selected from the group consisting of ##STR2## wherein a has a value of one to four; X is a member selected from the group consisting of OH, NH.sub.2 or H; X' is a member selected from the group consisting of H or NHR' where R' is hydrogen, alkyl or aryl; n and d are individually integers of 0 to 10 and the sum of n and d is at least one and does not exceed 10; s is either 0 or 1; y is an integer of 0 to 4; and m is an integer of at least about 16, with the proviso that when B is nitrogen and either n or d is zero, X and X' are not both H. The dispersions are useful for the production of polyurethane foams.
摘要:
Novel polyols, useful in, for example, reaction injection molding, high resiliency foams and the preparation of polymer/polyols, characterized by the following formula: ##STR1## wherein A and A', which may be the same or different, are connective atoms--carbon, oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is nitrogen (N) or CR, R being hydrogen, alkyl, aryl or the like; Q is 0, CH.sub.2 O, C.sub.2 H.sub.4 O, C.sub.3 H.sub.6 O, or C.sub.4 H.sub.8 O; D is an oxyalkylene or ##STR2## X and X', which may be the same or different, are OH, NH.sub.2 or H; Z is OH; n and d are integers of 0 to 10 and the sum of n and d does not exceed 10; s is 0 or 1, and m is an integer of at least about 16, with the proviso that when B is N and either n or d is zero, X and X' are other than H, provide processing advantages and are highly compatible with low molecular weight extenders such as ethylene glycol.
摘要翻译:用于例如反应注射成型,高弹性泡沫和聚合物/多元醇制备的新型多元醇,其特征在于下列结构式:其中A和A'可以相同或不同,为连接原子 碳,氧或其与满足化合价的氢原子等的组合; B是氮(N)或CR,R是氢,烷基,芳基等; Q为0,CH 2 O,C 2 H 4 O,C 3 H 6 O或C 4 H 8 O; D是氧化烯或者可以是相同或不同的OH,NH 2或H的X和X'; Z是OH; n和d为0〜10的整数,n和d之和不超过10; s为0或1,m为至少约16的整数,条件是当B为N且n或d为0时,X和X'不是H,提供加工优点,并且与 低分子量增量剂如乙二醇。
摘要:
Novel polyols, useful in, for example, reaction injection molding, high resiliency foams and the preparation of polymer/polyols, characterized by the following formula: ##STR1## wherein A and A', which may be the same or different, are connective atoms--carbon, oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is nitrogen (N) or CR, R being hydrogen, alkyl, aryl or the like; Q is 0, CH.sub.2 O, C.sub.2 H.sub.4 O, C.sub.3 H.sub.6 O, or C.sub.4 H.sub.8 O; D is an oxyalkylene or ##STR2## X and X', which may be the same or different, are OH, NH.sub.2 or H; Z is OH; n and d are integers of 0 to 10 and the sum of n and d does not exceed 10; s is 0 or 1, and m is an integer of at least about 16, with the proviso that when B is N and either n or d is zero, X and X' are other than H, provide processing advantages and are highly compatible with low molecular weight extenders such as ethylene glycol.
摘要翻译:用于例如反应注射成型,高弹性泡沫和聚合物/多元醇制备的新型多元醇,其特征在于下列结构式:其中A和A'可以相同或不同,为连接原子 碳,氧或其与满足化合价的氢原子等的组合; B是氮(N)或CR,R是氢,烷基,芳基等; Q为0,CH 2 O,C 2 H 4 O,C 3 H 6 O或C 4 H 8 O; D是氧化烯或者可以是相同或不同的OH,NH 2或H的X和X'; Z是OH; n和d为0〜10的整数,n和d之和不超过10; s为0或1,m为至少约16的整数,条件是当B为N且n或d为0时,X和X'不是H,提供加工优点,并且与 低分子量增量剂如乙二醇。
摘要:
Connected branch polyols comprising a core segment having a defined molecular weight, one core branch unit directly connected to each end of the core segment, at least one additional branch unit at each end connected directly or indirectly to each core branch unit, and linear polymer segments connected to the branch units are utilized in preparing a wide spectrum of polymer/polyols characterized by superior dispersion stability and viscosity to solids content relationship, the polymer/polyols in turn being employed to prepare polyurethanes having superior performance in flame retardancy tests.
摘要:
Novel polyols, useful in, for example, reaction injection molding, high resiliency foams and the preparation of polymer/polyols, characterized by the following formula: ##STR1## wherein A and A', which may be the same or different, are conductive atoms - carbon, oxygen or combinations thereof with hydrogen atoms or the like satisfying the valences; B is nitrogen (N) or CR, R being hydrogen, alkyl, aryl or the like; Q is 0, CH.sub.2 O, C.sub.2 H.sub.4 O, C.sub.3 H.sub.6 O, or C.sub.4 H.sub.8 O; D is an oxyalkylene or ##STR2## X and X', which may be the same or different, are OH, NH.sub.2 or H; Z is OH; n and d are integers of 0 to 10 and the sum of n and d does not exceed 10; s is 0 or 1, and m is an integer of at least about 16, with the proviso that when B is N and either n or d is zero, X and X' are other than H, provide processing advantages and are highly compatible with low molecular weight extenders such as ethylene glycol.
摘要翻译:用于例如反应注射成型,高弹性泡沫和聚合物/多元醇的制备的新型多元醇,其特征在于下列结构式:其中A和A'可以相同或不同,为导电原子 - 碳,氧或其与氢原子等的化合物满足化合价; B是氮(N)或CR,R是氢,烷基,芳基等; Q为0,CH 2 O,C 2 H 4 O,C 3 H 6 O或C 4 H 8 O; D是氧化烯或者可以是相同或不同的OH,NH 2或H的X和X'; Z是OH; n和d为0〜10的整数,n和d之和不超过10; s为0或1,m为至少约16的整数,条件是当B为N且n或d为0时,X和X'不是H,提供加工优点,并且与 低分子量增量剂如乙二醇。
摘要:
Thermosettable, coreactable particulate powdereded compositions having particles comprising at least a first copolymer of an olefinically unsaturated monomer having at least one functional group and at least a second copolymer of an olefinically unsaturated monomer having at least one functional group which is reactive with the at least one functional group of the at least first copolymer are disclosed. Methods for making and using these compositions are also disclosed.
摘要:
The present invention is directed to methods and apparatus for spraying liquid compositions by airless spray techniques which avoid fishtail spray patterns and desirably obtain feathered spray patterns.
摘要:
Continuous process for producing hydrogels by charging preselected feeds containing poly(oxyalkylene) polyols, organic diisocyanate and catalyst to a reaction zone followed by crosslinking by exposure to atmospheric humidity. Solvents are not used and the hydrogels are shaped in desired configuration as they exit the extruder.
摘要:
An electrostatic liquid coatings application process and apparatus is provided in which supercritical fluids, such as supercritical carbon dioxide fluid, are used to reduce to application consistency viscous coatings compositions to allow for their application as liquid sprays. The coatings compositions are sprayed by passing the composition under pressure through an orifice into the environment of the substrate. The liquid spray is electrically charged by applying a high electrical voltage relative to the substrate and electric current.
摘要:
A coating of hydrophobic polymer is prepared by contacting a substrate with an aqueous media containing amphiphilic polymer and polymerizing polymerizable component to provide the hydrophobic polymer coating. The processes can be used to make stable dispersions of particles, such as pigments, for paint compositions.