Mixtures containing phosphorus compounds and use thereof

Mixtures (M), comprising:

• a compound (X) of polyethers of the general formula (I)
• R1—(O—R2)p—O—R1 (I),
• wherein R1 may be identical or different and denotes a hydrogen atom or hydrocarbon radicals;
• wherein R2 may be identical or different and denotes divalent, optionally substituted hydrocarbon radicals;
• wherein p is an integer from 4 to 110;
• a compound (Y) of phosphorus compounds of the general formula (II)
• O═PR5m(OR6)n(OH)3-(m+n) (II),
• wherein R5 may be identical or different and denotes optionally substituted hydrocarbon radicals;
• wherein R6 may be identical or different and denotes optionally substituted hydrocarbon radicals;
• wherein m is equal to 0 or 1, preferably 1;
• wherein n is equal to 0, 1 or 2;
• wherein m+n is equal to 1 or 2, preferably 1;
• and
• optionally a compound (Z) being an amount of water.

Process for preparing mixtures (M), comprising:

• providing a compound (X) of polyethers of the general formula (I), a compound (Y) of phosphorus compounds of the formula (II) and optionally a compound (Z) being an amount of water,
• wherein the general formula (I) is
• R1—(O—R2)p—O—R1 (I),
• wherein R1 may be identical or different and denotes a hydrogen atom or hydrocarbon radicals,
• wherein R2 may be identical or different and denotes divalent, optionally substituted hydrocarbon radicals, and
• wherein p is an integer from 4 to 110,
• wherein the formula (II) is
• O═PR5m(OR6)n(OH)3-(m+n) (II),
• wherein R5 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein R6 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein m is equal to 0 or 1, preferably 1,
• wherein n is equal to 0, 1 or 2,
• wherein m+n is equal to 1 or 2, preferably 1;
• and
• mixing the individual constituents together.

A process for preparing crosslinkable compositions based on organosilicon compounds, comprising:

• providing (A) of organopolysiloxanes of the formula (V)
• (R7O)3-aSiR3aO(SiR42O)xSiR3a(OR7)3-a (V),
• wherein R4 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein R7 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein R3 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein a may be identical or different and is 0 or 1, preferably 1,
• wherein x is an integer from 30 to 2000;
• providing (B) mixtures (M), wherein the mixtures (M) comprise a compound (X) of polyethers of the general formula (I), a compound (Y) of phosphorus compounds of the formula (II) and optionally a compound (Z) being an amount of water,
• wherein the general formula (I) is
• R1—(O—R2)p—O—R1 (I),
• wherein R1 may be identical or different and denotes a hydrogen atom or hydrocarbon radicals,
• wherein R2 may be identical or different and denotes divalent, optionally substituted hydrocarbon radicals,
• wherein p is an integer from 4 to 110,
• wherein the formula (II) is
• O═PR5m(OR6)n(OH)3(m+n) (II),
• wherein R5 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein R6 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein m is equal to 0 or 1, preferably 1,
• wherein n is equal to 0, 1 or 2,
• wherein m+n is equal to 1 or 2, preferably 1;
• and
• mixing the individual constituents together.

Compositions, comprising:

• (A) organopolysiloxanes of the formula (V), (B) mixtures (M), and optionally (C) silanes of the formula (VI) and/or partial hydrolysates thereof, optionally (D) curing accelerators, optionally (E) plasticizers, optionally (F) fillers and optionally (G) additives;
• wherein the mixtures (M) comprise a compound (X) of polyethers of the general formula (I), a compound (Y) of phosphorus compounds of the formula (II) and optionally a compound (Z) being an amount of water;
• wherein the general formula (I) is
• R1—(O—R2)p—O—R1 (I),
• wherein R1 may be identical or different and denotes a hydrogen atom or hydrocarbon radicals,
• wherein R2 may be identical or different and denotes divalent, optionally substituted hydrocarbon radicals,
• wherein p is an integer from 4 to 110;
• wherein the general formula (II) is
• O═PR5m(OR6)n(OH)3(m+n) (II),
• wherein R5 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein R6 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein m is equal to 0 or 1, preferably 1,
• wherein n is equal to 0, 1 or 2,
• wherein m+n is equal to 1 or 2, preferably 1;
• and
• wherein the formula (V) is
• (R7O)3-aSiR3aO(SiR42O)xSiR3a(OR7)3-a (V),
• wherein R4 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein R7 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein R3 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein a may be identical or different and is 0 or 1, preferably 1, and
• wherein x is an integer from 30 to 2000.

Process for preparing the compositions, comprising:

• providing (A) organopolysiloxanes of the formula (V), (B) mixtures (M), and optionally
• (C) silanes of the formula (VI) and/or partial hydrolysates thereof, optionally (D) curing accelerators, optionally (E) plasticizers, optionally (F) fillers and optionally (G) additives,
• wherein the mixtures (M) comprise a compound (X) of polyethers of the general formula (I), a compound (Y) of phosphorus compounds of the formula (II) and optionally a compound (Z) being an amount of water;
• wherein the general formula (I) is
• R1—(O—R2)p—O—R1 (I),
• wherein R1 may be identical or different and denotes a hydrogen atom or hydrocarbon radicals,
• wherein R2 may be identical or different and denotes divalent, optionally substituted hydrocarbon radicals,
• wherein p is an integer from 4 to 110;
• wherein the general formula (II) is
• O═PR5m(OR6)n(OH)3-(m+n) (II),
• wherein R5 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein R6 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein m is equal to 0 or 1, preferably 1,
• wherein n is equal to 0, 1 or 2,
• wherein m+n is equal to 1 or 2, preferably 1;
• and
• wherein the formula (V) is
• (R7O)3-aSiR3aO(SiR42O)xSiR3a(OR7)3-a (V),
• wherein R4 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein R7 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein R3 may be identical or different and denotes monovalent, optionally substituted hydrocarbon radicals,
• wherein a may be identical or different and is 0 or 1, preferably 1,
• wherein x is an integer from 30 to 2000;
• and
• mixing the individual constituents.

A process for preparing organosilicon compounds comprising organyloxy groups;

• comprising:
• wherein in a 1st step an organosilicon compound (a) comprising at least one silanol group is reacted with a compound (b) comprising at least two organyloxy groups, in the presence of catalysts (c), which are selected from lithium alkoxylates, lithium hydroxide, amidines or guanidines;
• wherein in a 2nd step, after reaction of the hydroxyl groups of the component (a) with the compounds (b) comprising organyloxy groups has taken place, the mixture (M) according to the invention is added,
• wherein the mixtures (M) comprise a compound (X) of polyethers of the general formula (I), a compound (Y) of phosphorus compounds of the formula (II) and optionally a compound (Z) being an amount of water;
• wherein the general formula (I) is
• R1—(O—R2)p—O—R1 (I),
• wherein R1 may be identical or different and denotes a hydrogen atom or hydrocarbon radicals,
• wherein R2 may be identical or different and denotes divalent, optionally substituted hydrocarbon radicals,
• wherein p is an integer from 4 to 110;
• wherein the general formula (II) is
• O═PR5m(OR6)n(OH)3-(m+n) (II),
• wherein R5 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein R6 may be identical or different and denotes optionally substituted hydrocarbon radicals,
• wherein m is equal to 0 or 1, preferably 1,
• wherein n is equal to 0, 1 or 2, and
• wherein m+n is equal to 1 or 2, preferably 1.