Primer compositions
AssigneeShin-Etsu Chemical Co., Ltd.
InventorsHironao Fujiki, Masanobu Miyakoshi, Takeo Yoshida, Yoshifumi Inoue, Masatoshi Arai
Life of this patent
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Abstract
A primer composition has blended therein an organic silicon compound having in a molecule at least one group of the formula: ##STR1## wherein R.sup.1 is a monovalent hydrocarbon group or a group represented by QSi( R.sup.4 O).sub.a (R.sup.5).sub.3-a, Q is a divalent organic group, R.sup.4 and R.sup.5 each are a monovalent hydrocarbon group, a is an integer of 0 to 3, R.sup.2 and R.sup.3 each are a hydrogen atom or a monovalent hydrocarbon group, and n is 0, 1 or 2. The primer composition is a useful adhesive since it is effective for joining silicone elastomers and similar adherends to supports such as paint coated metals and resins.
Claims14
A primer composition comprising an organic silicon compound having in a molecule at least one group of the formula (1):
- ##STR10## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1 or 2,
- an organic titanium compound, and
- an organic solvent.
A primer composition comprising an organic silicon compound having in a molecule at least one structure of the formula (2):
- ##STR11## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1, or 2,
- R.sup.6 is a substituted or unsubstituted monovalent hydrocarbon group,
- an organic titanium compound, and
- an organic solvent.
A primer composition comprising an organic silicon compound having in a molecule at least one group of the formula (1):
- ##STR12## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1 or 2,
- an organic titanium compound or organic tin compound, an organopolysiloxane having a hydrosilyl group, a platinum compound, and
- an organic solvent.
A primer composition comprising an organic silicon compound having in a molecule at least one structure of the formula (2):
- ##STR13## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1, or 2,
- R.sup.6 is a substituted or unsubstituted monovalent hydrocarbon group,
- an organic titanium compound or organic tin compound, an organopolysiloxane having a hydrosilyl group, a platinum compound, and
- an organic solvent.
A primer composition consisting essentially of an organic silicon compound having in a molecule at least one group of the formula (1):
- ##STR14## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1 or 2,
- an organic titanium compound or organic tin compound, and
- an organic solvent.
A primer composition consisting essentially of an organic silicon compound having in a molecule at least one group of the formula (1):
- ##STR15## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1 or 2,
- an organic titanium compound or organic tin compound, an organic silicon compound of the average compositional formula (3):
- R.sup.7.sub.b R.sup.8.sub.c (R.sup.9 O).sub.d SiO.sub.(4-b-c-d)/2 ( 3)
- wherein
- R.sup.7 is a substituted or unsubstituted monovalent hydrocarbon group,
- R.sup.8 is a monovalent hydrocarbon group having a functional group capable of addition reaction or condensation reaction,
- R.sup.9 is a substituted or unsubstituted monovalent hydrocarbon group, and
- letters b, c and d are numbers satisfying 0.ltoreq.b.ltoreq.3, 0.ltoreq.c.ltoreq.3, 2.ltoreq.d.ltoreq.4, and 2.ltoreq.b+c+d.ltoreq.4, and
- an organic solvent.
A primer composition consisting essentially of an organic silicon compound having in a molecule at least one structure of the formula (2):
- ##STR16## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3.
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1, or 2,
- R.sup.6 is a substituted or unsubstituted monovalent hydrocarbon group,
- an organic titanium compound or organic tin compound, and
- an organic solvent.
A primer composition consisting essentially of an organic silicon compound having in a molecule at least one structure of the formula (2):
- ##STR17## wherein R.sup.1 is substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1, or 2,
- R.sup.6 is a substituted or unsubstituted monovalent hydrocarbon group,
- an organic titanium compound or organic tin compound, an organic silicon compound of the average compositional formula (3):
- R.sup.7.sub.b R.sup.8.sub.c (R.sup.9 O).sub.d SiO.sub.(4-b-c-d)/2 ( 3)
- wherein
- R.sup.7 is a substituted or unsubstituted monovalent hydrocarbon group,
- R.sup.8 is a monovalent hydrocarbon group having a functional group capable of addition reaction or condensation reaction,
- R.sup.9 is a substituted or unsubstituted monovalent hydrocarbon group, and
- letters b, c and d are numbers satisfying 0.ltoreq.b.ltoreq.3, 0.ltoreq.c.ltoreq.3, 2.ltoreq.d.ltoreq.4, and 2.ltoreq.b+c+d.ltoreq.4, and
- an organic solvent.
A primer composition consisting essentially of an organic silicon compound having in a molecule at least one structure of the formula (2):
- ##STR18## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1, or 2,
- R.sup.6 is a substituted or unsubstituted monovalent hydrocarbon group,
- an organic titanium compound or organic tin compound, an organopolysiloxane having a hydrosilyl group, a platinum compound, and
- an organic solvent.
A primer composition consisting essentially of an organic silicon compound having in a molecule at least one structure of the formula (2):
- ##STR19## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1 or 2,
- R.sup.6 is a substituted or unsubstituted monovalent hydrocarbon group,
- an organic titanium compound or organic tin compound, an organopolysiloxane having a hydrosilyl group, a platinum compound, an organic silicon compound of the average compositional formula (3):
- R.sup.7.sub.b R.sup.8.sub.c (R.sup.9 O).sub.d SiO.sub.(4-b-c-d)/2 ( 3)
- wherein
- R.sup.7 is a substituted or unsubstituted monovalent hydrocarbon group,
- R.sup.8 is a monovalent hydrocarbon group having a functional group capable of addition reaction or condensation reaction,
- R.sup.9 is a substituted or unsubstituted monovalent hydrocarbon group, and
- letters b, c and d are numbers satisfying 0.ltoreq.b.ltoreq.3, 0.ltoreq.c.ltoreq.3, 2.ltoreq.d.ltoreq.4, and 2.ltoreq.b+c+d.ltoreq.4, and
- an organic solvent.
A primer composition consisting essentially of an organic silicon compound having in a molecule at least one group of the formula (1):
- ##STR20## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1 or 2,
- an organic titanium compound or organic tin compound, an organopolysiloxane having a hydrosilyl group, a platinum compound, and
- an organic solvent.
A primer composition consisting essentially of an organic silicon compound having in a molecule at least one group of the formula (1):
- ##STR21## wherein R.sup.1 is a substituted or unsubstituted monovalent hydrocarbon group or a group represented by QSi(R.sup.4 O).sub.a (R.sup.5).sub.3-a'
- Q is a divalent organic group,
- R.sup.4 and R.sup.5 each are a substituted or unsubstituted monovalent hydrocarbon group,
- letter a is an integer of 0 to 3,
- R.sup.2 and R.sup.3 each are a hydrogen atom or a substituted or unsubstituted monovalent hydrocarbon group,
- letter n is 0, 1 or 2,
- an organic titanium compound or organic tin compound, an organopolysiloxane having a hydrosilyl group, a platinum compound, an organic silicon compound of the average compositional formula (3):
- R.sup.7.sub.b R.sup.8.sub.c (R.sup.9 O).sub.d SiO.sub.(r-b-c-d)/2 ( 3)
- wherein
- R.sup.7 is a substituted or unsubstituted monovalent hydrocarbon group,
- R.sup.8 is a monovalent hydrocarbon group having a functional group capable of addition reaction or condensation reaction,
- R.sup.9 is a substituted or unsubstituted monovalent hydrocarbon group, and
- letters b, c and d are numbers satisfying 0.ltoreq.b.ltoreq.3, 0.ltoreq.c.ltoreq.3, 2.ltoreq.d.ltoreq.4, and 2.ltoreq.b+c+d.ltoreq.4, and
- an organic solvent.
Dependencies are inferred from the claim text.