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公开(公告)号：US20210395429A1
公开(公告)日：2021-12-23
申请号：US17281766
申请日：2019-09-27
摘要： The present invention relates to a hybrid polyurethane-polyhydroxyurethane (PU-PHU) composition obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with at least one isocyanate-reactive compound, resulting in the formation of at least one prepolymer, (ii) Reacting said at least one prepolymer with at least one cyclic carbonate functional group containing compound, leading to the formation of a cyclic carbonate-terminated prepolymer, (iii) Ring-opening reaction of said cyclic carbonate-terminated prepolymer with at least one amine functional group containing compound resulting in said hybrid PU-PHU composition, characterised in that said ring-opening reaction step is carried out above room temperature, preferably above 20° C., more preferably above 25° C.
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公开(公告)号：US20210340310A1
公开(公告)日：2021-11-04
申请号：US17273198
申请日：2019-09-05
摘要： The present invention relates to a compound obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with a first isocyanate-reactive compound having a number average molecular weight lower than 400, resulting in the formation of at least one prepolymer, (ii) Reacting said prepolymer, in stoichiometric excess, with a second isocyanate-reactive compound having a number average molecular weight equal to or higher than 400, resulting in the formation of a modified prepolymer, (iii) Reacting said modified prepolymer with a hydroxyl-ester compound or a hydroxyl-acid compound with the formation of hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer, and Ring-closing said hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer; (iv) Formation of said compound made of oxazolidinedione-terminated prepolymer and oxazolidinedione-terminated monomer, which is soluble in said oxazolidinedione-terminated prepolymer.
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公开(公告)号：US12012477B2
公开(公告)日：2024-06-18
申请号：US17281766
申请日：2019-09-27
CPC分类号： C08G18/10 , C08G18/284 , C08G18/3819 , C08G18/4825 , C08G18/7671
摘要： The present invention relates to a hybrid polyurethane-polyhydroxyurethane (PU-PHU) composition obtained by a process comprising the following steps:
(i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with at least one isocyanate-reactive compound, resulting in the formation of at least one prepolymer,
(ii) Reacting said at least one prepolymer with at least one cyclic carbonate functional group containing compound, leading to the formation of a cyclic carbonate-terminated prepolymer,
(iii) Ring-opening reaction of said cyclic carbonate-terminated prepolymer with at least one amine functional group containing compound resulting in said hybrid PU-PHU composition,
characterised in that said ring-opening reaction step is carried out above room temperature, preferably above 20° C., more preferably above 25° C.-
公开(公告)号：US20220220247A1
公开(公告)日：2022-07-14
申请号：US17610185
申请日：2020-05-26
摘要： The present invention relates to a liquid composition comprising at least one silylated polymer and at least one tin-free polyhedral oligomeric titanium silsesquioxane in liquid form.
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公开(公告)号：US12065530B2
公开(公告)日：2024-08-20
申请号：US17273193
申请日：2019-09-05
CPC分类号： C08G18/12 , C07D263/44 , C08G18/2081 , C08G18/284 , C08G18/325 , C08G18/4825 , C08G18/7671
摘要： The present invention relates to a compound obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with at least one isocyanate-reactive compound having a number average molecular weight equal to or higher than 400, resulting in the formation of at least one prepolymer having soft blocks and hard blocks in its structure, which prepolymer contains unreacted isocyanate monomer, (ii) Reacting said at least one prepolymer with a hydroxyl-ester compound or a hydroxyl-acid compound with the formation of hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer, and Ring-closing said hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer; (iii) Formation of said compound made of oxazolidinedione-terminated prepolymer and oxazolidinedione-terminated monomer, which is soluble in said oxazolidinedione-terminated prepolymer.
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公开(公告)号：US20230057382A1
公开(公告)日：2023-02-23
申请号：US17785591
申请日：2020-12-17
摘要： The present invention relates to silyl terminated polyurethanes and to intermediates for the preparation thereof. In particular to an allyl-monool-containing initiator, allyl-terminated polyurethane prepolymer and to processes for their preparation. According to another of its aspect, the invention relates to a product obtainable by curing the silyl terminated polyurethane of the invention and to uses thereof.
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公开(公告)号：US20210324132A1
公开(公告)日：2021-10-21
申请号：US17273193
申请日：2019-09-05
摘要： The present invention relates to a compound obtained by a process comprising the following steps: (i) Reacting at least one isocyanate containing compound, in stoichiometric excess, with at least one isocyanate-reactive compound having a number average molecular weight equal to or higher than 400, resulting in the formation of at least one prepolymer having soft blocks and hard blocks in its structure, which prepolymer contains unreacted isocyanate monomer, (ii) Reacting said at least one prepolymer with a hydroxyl-ester compound or a hydroxyl-acid compound with the formation of hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer, and Ring-closing said hydroxyl-ester terminated prepolymer or hydroxyl-acid terminated prepolymer; (iii) Formation of said compound made of oxazolidinedione-terminated prepolymer and oxazolidinedione-terminated monomer, which is soluble in said oxazolidinedione-terminated prepolymer.
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