The present invention provides a method for producing an aqueous dispersion of pseudopolyrotaxane that enables the production, by an industrially advantageous method for an aqueous dispersion of pseudopolyrotaxane in which the inclusion amount of a cyclodextrin does not increase with time and which can provide a crosslinked polyrotaxane having sufficient stretchability and breaking strength. The present invention relates to a method for producing an aqueous dispersion of pseudopolyrotaxane containing pseudopolyrotaxane particles in which a polyethylene glycol is included in a cavity of a cyclodextrin molecule in a skewered manner, the method including: an inclusion step of mixing a polyethylene glycol and a cyclodextrin in an aqueous medium to include the polyethylene glycol in a cavity of a cyclodextrin molecule, wherein in the inclusion step, a basic compound is added.

Organopolysiloxane emulsions having improved release properties when employed in die casting, contain an organopolysiloxane with long chain alkyl groups and/or aryl groups, and a partially hydrophobicized silica as an emulsifying agent.

Organopolysiloxane emulsions having improved release properties when employed in die casting, contain an organopolysiloxane with long chain alkyl groups and/or aryl groups, and a partially hydrophobicized silica as an emulsifying agent.

A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s.sup.−1.

A process for preparing an aqueous solution of a methylcellulose having anhydroglucose units joined by 1-4 linkages wherein hydroxy groups of anhydroglucose units are substituted with methyl groups such that s23/s26 is 0.36 or less, wherein s23 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 3-positions of the anhydroglucose unit are substituted with methyl groups and wherein s26 is the molar fraction of anhydroglucose units wherein only the two hydroxy groups in the 2- and 6-positions of the anhydroglucose unit are substituted with methyl groups, comprises the step of mixing the methylcellulose with an aqueous liquid at a temperature of not higher than 10° C. at a shear rate of at least 1000 s.sup.−1.

The present disclosure relates to thermoplastic polymeric microspheres comprising a thermoplastic polymer shell surrounding a hollow core, in which the thermoplastic polymer shell comprises a copolymer of a monomer of Formula 1:

##STR00001##

wherein: each of A.sup.1 to A.sup.11 are independently selected from H and C.sub.1 to C.sub.4 alkyl, in which each C.sub.1-4 alkyl group can optionally be substituted with one or more substituents selected from halogen, hydroxy and C.sub.1-4 alkoxy; A.sup.12 is selected from C.sub.1 to C.sub.4 alkyl, in which the C.sub.1-4 alkyl group can optionally be substituted with one or more substituents selected from halogen, hydroxy and C.sub.1-4 alkoxy X is a linking group selected from —O—, —NR″—, —S—, —OC(O)—, —NR″C(O)—, —SC(O)—, —C(O)O—, —C(O)NR″—, and —C(O)S—; and
R″ is H or C.sub.1-2 alkyl optionally substituted with one or more substituents selected from halogen and hydroxyl.

The present disclosure relates to thermoplastic polymeric microspheres comprising a thermoplastic polymer shell surrounding a hollow core, in which the thermoplastic polymer shell comprises a copolymer of a monomer of Formula 1:

##STR00001##

wherein: each of A.sup.1 to A.sup.11 are independently selected from H and C.sub.1 to C.sub.4 alkyl, in which each C.sub.1-4 alkyl group can optionally be substituted with one or more substituents selected from halogen, hydroxy and C.sub.1-4 alkoxy; A.sup.12 is selected from C.sub.1 to C.sub.4 alkyl, in which the C.sub.1-4 alkyl group can optionally be substituted with one or more substituents selected from halogen, hydroxy and C.sub.1-4 alkoxy X is a linking group selected from —O—, —NR″—, —S—, —OC(O)—, —NR″C(O)—, —SC(O)—, —C(O)O—, —C(O)NR″—, and —C(O)S—; and
R″ is H or C.sub.1-2 alkyl optionally substituted with one or more substituents selected from halogen and hydroxyl.

Fiber reinforced composite comprising a polypropylene with high melting temperature and very narrow molecular weight distribution.

An improved process for forming polyamide dispersions in water utilizing carbon dioxide to facilitate dispersion of the polyamide is disclosed. The polyamides are generally below 30,000 or 40,000 g/mole molecular weight when dispersed, but can be chain extended with polyfunctional species such as polyisocyanates after dispersion. The dispersions are useful in coatings, adhesives, and inks. Composites and hybrids of these other polyamides with vinyl polymers are also disclosed and claimed.

An improved process for forming polyamide dispersions in water utilizing carbon dioxide to facilitate dispersion of the polyamide is disclosed. The polyamides are generally below 30,000 or 40,000 g/mole molecular weight when dispersed, but can be chain extended with polyfunctional species such as polyisocyanates after dispersion. The dispersions are useful in coatings, adhesives, and inks. Composites and hybrids of these other polyamides with vinyl polymers are also disclosed and claimed.