Patent ID: 11912888
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A surface-treating agent comprising a fluoropolyether group-containing compound represented by formula (1) and a fluoropolyether group-containing compound represented by formula (2) below:, wherein
RF1 is Rf1—RF—Oq—;
RF2 is —Rf2p—RF—Oq—;
Rf1 is a C1-16 alkyl group optionally substituted with one or more fluorine atoms;
Rf2 is a C1-6 alkylene group optionally substituted with one or more fluorine atoms;
RF is each independently at each occurrence a group represented by formula:

—(OC6F12)a—(OC5F10)b—(OC4F8)c—(OC3RFa6)d—(OC2F4)e—(OCF2)f—

a, b, c, and d are each independently an integer of 0 or more and 30 or less, e and f are each independently an integer of 1 or more and 200 or less, the sum of a, b, c, d, e, and f is at least 5, the occurrence order of each repeating unit enclosed in parentheses provided with a subscript a, b, c, d, e, or f is not limited in the formula, and the ratio of e to f is less than 0.9;
RFa is each independently at each occurrence a hydrogen atom, a fluorine atom, or a chlorine atom;
p is 0 or 1;
q is independently 0 or 1;
RSi is each independently at each occurrence represented by formula (S1) below:

—X1—SiRa1p1Rb1q1Rc1r1  (S1)

X1 is each independently at each occurrence a single bond, an oxygen atom, or a divalent organic group;
Ra1 is each independently at each occurrence —Z1′—SiRa1′p1′Rb1′q1′Rd1′r1′;
Z1′ is each independently at each occurrence a single bond, an oxygen atom, or a divalent organic group;
Ra1′ is each independently at each occurrence —Z1″—SiRa1″p1″Rb1″q1″Rc1″r1″;
Z1″ is each independently at each occurrence a single bond, an oxygen atom, or a divalent organic group;
Ra1″ is each independently at each occurrence —Z1′″—SiRb1′″q1′″Rc1′″r1′″;
Z1′″ is each independently at each occurrence a single bond, an oxygen atom, or a divalent organic group;
Rb41′″ is each independently at each occurrence a hydroxyl group or a hydrolyzable group;
Rc1′″ is each independently at each occurrence a hydrogen atom or a monovalent organic group;
q1′″ is each independently at each occurrence an integer of 0 to 3;
r1′″ is each independently at each occurrence an integer of 0 to 3;
Rb1″ is each independently at each occurrence a hydroxyl group or a hydrolyzable group;
Rc1″ is each independently at each occurrence a hydrogen atom or a monovalent organic group;
p1″ is each independently at each occurrence an integer of 0 to 3;
q1″ is each independently at each occurrence an integer of 0 to 3;
r1″ is each independently at each occurrence an integer of 0 to 3;
Rb1′ is each independently at each occurrence a hydroxyl group or a hydrolyzable group;
Rc1′ is each independently at each occurrence a hydrogen atom or a monovalent organic group;
p1′ is each independently at each occurrence an integer of 0 to 3;
q1′ is each independently at each occurrence an integer of 0 to 3;
r1′ is each independently at each occurrence an integer of 0 to 3;
Rb1 is each independently at each occurrence a hydroxyl group or a hydrolyzable group;
Rc1 is each independently at each occurrence a hydrogen atom or a monovalent organic group;
p1 is each independently at each occurrence an integer of 0 to 3;
q1 is each independently at each occurrence an integer of 0 to 3; and
r1 is each independently at each occurrence an integer of 0 to 3;
provided that at least one Rb1, Rb1′, Rb1″, or Rb1′″ is present for each group represented by RSi.