The invention relates to polyethers, polyamines, and polythioethers, as well as to processes for synthesizing them, e.g., using olefins as starting material.

The present invention aims to provide a method of producing a polyether polyol having a low aldehyde content, the method including simpler steps; and a method of producing polyurethane foam having a reduced amount of aldehyde volatilization. The present invention provides a method of producing a polyether polyol (F) including step (1) of obtaining a crude polyether polyol composition (D2) having a pH higher than 5.0 by contact of a crude polyether polyol composition (D1) containing a polyether polyol (A) with an acid catalyst (B) in the presence of water, the polyether polyol (A) being obtainable by ring-opening polymerization of an alkylene oxide with an active hydrogen compound; and step (2) of removing a volatile component containing an aldehyde (C) after step (1).

The present invention relates to a compound of the formula (I) ##STR00001##
for improving the tensile shear strength of hardened compositions based on silane-modified prepolymers, a composition containing a silane-functionalized prepolymer and a compound of the formula (I), a method for the production of this composition and the use of the compound of the formula (I) in adhesives, sealants, coatings and/or primers, based on silane-functionalized prepolymers and the use of this compound for the production of adhesives, sealants, coatings and/or primers based on silane-functionalized prepolymers.

The invention relates to a method for adding a compound (A) to an H-functional starting compound (BH) in the presence of a catalyst, wherein the at least one compound (A) is selected from at least one group consisting of alkylene oxide (A-1), lactone (A-2), lactide (A-3), cyclic acetal (A-4), lactam (A-5), cyclic anhydride (A-6) and oxygen-containing heterocyclic compound (A-7) different from (A-1), (A-2), (A-3), (A-4) and (A-6), wherein the catalyst comprises an organic, n-protic Brnsted acid (C), wherein n2 and is an element of the natural numbers and the degree of protolysis D is 0<D<n, with n as the maximum number of transferable protons and D as the calculated proton fraction of the organic, n-protic Brnsted acid (C). The invention further relates to an n-protic Brnsted acid (C) having a degree of protolysis D of 0<D<n, wherein n is the maximum number of transferable protons, with n=2, 3 or 4, and D is the calculated proton fraction of the organic, n-protic Brnsted acid (C).

The present invention aims to provide a method of producing a polyether polyol having a low aldehyde content, the method including simpler steps; and a method of producing polyurethane foam having a reduced amount of aldehyde volatilization. The present invention provides a method of producing a polyether polyol (F) including step (1) of obtaining a crude polyether polyol composition (D2) having a pH higher than 5.0 by contact of a crude polyether polyol composition (D1) containing a polyether polyol (A) with an acid catalyst (B) in the presence of water, the polyether polyol (A) being obtainable by ring-opening polymerization of an alkylene oxide with an active hydrogen compound; and step (2) of removing a volatile component containing an aldehyde (C) after step (1).

The present invention relates to a compound of the formula (I)

##STR00001##

for improving the tensile shear strength of hardened compositions based on silane-modified prepolymers, a composition containing a silane-functionalized prepolymer and a compound of the formula (I), a method for the production of this composition and the use of the compound of the formula (I) in adhesives, sealants, coatings and/or primers, based on silane-functionalized prepolymers and the use of this compound for the production of adhesives, sealants, coatings and/or primers based on silane-functionalized prepolymers.

The invention relates to polyethers, polyamines, and polythioethers, as well as to processes for synthesizing them, e.g., using olefins as starting material.

The present invention relates to a shape-memory polymer having a 6-arm structure and use thereof. The shape-memory polymer according to the present invention exhibits shape-memory properties by cross-linking, can control temperature for shape restoration through monomer control and has biocompatibility. As a material, it can be developed into a medical material such as a support for the outer wall of blood vessels.