Described herein are compositions including a silanol compound that is suitably synthesized, stored, and coated from an aqueous solution. Once coated and cured on a suitable surface, the aqueous silanol compositions result in cleanable and abrasion resistant surfaces, such as dry-erase surfaces that release permanent marker by rubbing with a dry cloth or towel. Also disclosed herein are methods of making the silanol compounds, methods of making cleanable substrates, and cleanable substrates suitably formed using the disclosed methods.

A compound is provided, having the formula (I), wherein R.sub.S is a soft block polymer; wherein each T is independently a urethane or urea linkage; see formulae (A) and (B); wherein each R.sub.D is independently —CH.sub.3, —CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.3, or —CH.sub.2CH.sub.2CH.sub.2CH.sub.3; wherein each R′.sub.D is independently —CH.sub.3, —CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.2CH.sub.3, or —OR.sub.D; and wherein each p is independently 1, 2, or 3. Compositions containing the compound, and methods of making and using the compound are provided. ##STR00001##

A compound is provided, having the formula (I), wherein R.sub.S is a soft block polymer; wherein each T is independently a urethane or urea linkage; see formulae (A) and (B); wherein each R.sub.D is independently —CH.sub.3, —CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.3, or —CH.sub.2CH.sub.2CH.sub.2CH.sub.3; wherein each R′.sub.D is independently —CH.sub.3, —CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.3, —CH.sub.2CH.sub.2CH.sub.2CH.sub.3, or —OR.sub.D; and wherein each p is independently 1, 2, or 3. Compositions containing the compound, and methods of making and using the compound are provided. ##STR00001##

The present invention relates to a polysiloxane-polycarbonate copolymer using a hydroxyl terminated polysiloxane mixture, and a method for producing same, and more specifically, to: a polysiloxane-polycarbonate copolymer which includes hydroxy-terminated polysiloxanes of chemical formulae 1 and 2 in a specific weight ratio as repeating units, and thus exhibits excellent transmittance and low-temperature impact strength compared to the case of using either of the hydroxy-terminated polysiloxanes by itself, and in which the overall production yield of the raw material polysiloxane is improved, such that the polysiloxane-polycarbonate copolymer is excellent in terms of economics; and a method for producing same.

Silicone polyoxamide and silicone polyoxamide-hydrazide copolymers comprise at least two repeating units of formula (I). In this formula, each R.sup.1 is independently an alkyl, haloalkyl, aralkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo; each Y is independently an alkylene, aralkylene, or a combination thereof; each G is independently a bond or a divalent residue equal to a diamine of formula R.sup.3HN—G—HR.sup.3 minus the two —NHR.sup.3 groups; each R.sup.3 is independently hydrogen or alkyl or R.sup.3 taken together with G and with the nitrogen to which they are both attached form a heterocyclic group; each n is independently an integer of 0 to 300; each p is independently an integer of 1 to 25, and the average of p is 1.3 or greater; and each q is independently an integer of 1 to 2, and the average of q is no greater than 1.05.

##STR00001##

Silicone polyoxamide and silicone polyoxamide-hydrazide copolymers comprise at least two repeating units of formula (I). In this formula, each R.sup.1 is independently an alkyl, haloalkyl, aralkyl, alkenyl, aryl, or aryl substituted with an alkyl, alkoxy, or halo; each Y is independently an alkylene, aralkylene, or a combination thereof; each G is independently a bond or a divalent residue equal to a diamine of formula R.sup.3HN—G—HR.sup.3 minus the two —NHR.sup.3 groups; each R.sup.3 is independently hydrogen or alkyl or R.sup.3 taken together with G and with the nitrogen to which they are both attached form a heterocyclic group; each n is independently an integer of 0 to 300; each p is independently an integer of 1 to 25, and the average of p is 1.3 or greater; and each q is independently an integer of 1 to 2, and the average of q is no greater than 1.05.

##STR00001##

The present invention relates to a modified siloxane resin, a crosslinked modified siloxane resin, and a method for preparing the crosslinked resin. More specifically, the present invention relates to a modified siloxane resin, a crosslinked modified siloxane resin with excellent superhydrophobicity obtained by dual curing of the resin, and a method for preparing the crosslinked resin. The use of the modified siloxane resin according to the present invention allows the crosslinked modified siloxane resin to have excellent superhydrophobicity and high hardness. The water repellency of the crosslinked resin can be appropriately controlled by varying the amount of the siloxane resin mixed.

An aqueous of pre-crosslinked organopolysiloxanes and process for producing the same. The aqueous dispersion is preferably aqueous emulsion, including pre-crosslinked organopolysiloxanes which contains on average at least one structural unit of the general formula SiRO.sub.2/2—Y—SiRO.sub.2/2 and units of the formula R.sub.2SiO.sub.2/2. Where Y is a radical of the formula

—R.sup.2—[NR.sup.3—R.sup.4—].sub.x—NR.sup.3—OC—[C(Z.sup.1)(H)].sub.k1—[C(Z.sup.2)(H)].sub.k2—CO—NR.sup.3—[R.sup.4—NR].sub.x—R.sup.2

and where R, R.sup.2, R.sup.3, R.sup.4, k1, k2, x, Z.sup.1 and Z.sup.2 have a definition a set forth within herein. Additionally, the sum of k1+k2 is ≥1, the that at least one radical Z.sup.1 or Z.sup.2 is a hydroxyl or NHR.sup.3 group, preferably a hydroxyl group, and so the bridging group Y contains at least one hydroxyl or NHR.sup.3 group, preferably at least one hydroxyl group.

Hyperbranched polydiorganosiloxane polyoxamide polymers are formed from reaction mixtures containing AX.sub.g and BZ.sub.m compounds where either A or B is a siloxane-based group, and each X is either an oxalylamino-functional group or an amino-functional group, and each Z is either an amino-functional group or an oxylamino-functional group, such that upon reaction X and Z form an oxamide bond.

A photosensitive resin composition comprising a silicone structure-containing polymer having crosslinking groups or crosslinking reaction-susceptible reactive sites in the molecule is coated onto a substrate to form a photosensitive resin coating which has improved substrate adhesion, a pattern forming ability, crack resistance, heat resistance, and reliability as protective film.