초록 ▼

Strippable systems comprising at least one pressure sensitive adhesive based on at least one block copolymer, wherein said at least one block copolymer is based at least in part on (meth)acrylic acid derivatives, the block copolymers containing at least the unit P(A)-P(B)-P(A) composed of at least o

Strippable systems comprising at least one pressure sensitive adhesive based on at least one block copolymer, wherein said at least one block copolymer is based at least in part on (meth)acrylic acid derivatives, the block copolymers containing at least the unit P(A)-P(B)-P(A) composed of at least one polymer block P(B) and at least two polymer blocks P(A), whereP(A) independently of one another represent homopolymer or copolymer blocks of monomers A, the polymer blocks P(A) each having a softening temperature in the range from +20° C. to +175° C.,P(B) represents a homopolymer or copolymer block of monomers B, the polymer block P(B) having a softening temperature in the range from −100° C. to +10° C., andthe polymer blocks P(A) and P(B) are not homogeneously miscible with one another.

대표청구항 ▼

Strippable systems comprising at least one pressure sensitive adhesive based on at least one block copolymer, wherein said at least one block copolymer is based at least in part on (meth)acrylic acid derivatives, the block copolymers containing at least the unit P(A)-P(B)-P(A) composed of at least o

Strippable systems comprising at least one pressure sensitive adhesive based on at least one block copolymer, wherein said at least one block copolymer is based at least in part on (meth)acrylic acid derivatives, the block copolymers containing at least the unit P(A)-P(B)-P(A) composed of at least one polymer block P(B) and at least two polymer blocks P(A), whereP(A) independently of one another represent homopolymer or copolymer blocks of monomers A, the polymer blocks P(A) each having a softening temperature in the range from +20° C. to +175° C.,P(B) represents a homopolymer or copolymer block of monomers B, the polymer block P(B) having a softening temperature in the range from −100° C. to +10° C., andthe polymer blocks P(A) and P(B) are not homogeneously miscible with one another. approximately to the width of the masking material plus the width of the adhesive tape.10. A method comprising applying the masking tape of claim 1 to a part to be masked, and then subjecting said part to a surface treatment.11. The masking tape of claim 3, wherein the adhesive tape is 19 to 30 mm wide.12. The masking tape of claim 4, wherein the thickness is 130 to 200 &mgr;m.13. The masking tape of claim 5, wherein the width is 20 to 40 cm.14. The masking tape of claim 6, wherein the thickness is 8 to 20 &mgr;m.15. The masking tape of claim 6, wherein the masking sheet is corona pretreated or consists of polyethylene.16. The masking tape of claim 8, wherein the portion at the edge region of the pressure-sensitive adhesive composition to which the masking material adheres is 2 to 4 mm wide, or the portion of the edge region of the pressure-sensitive adhesive composition to which the masking sheet adheres is 2 to 4 mm wide.17. The method of claim 10, wherein the part is an automobile part.18. The method of claim 10, wherein the surface treatment is painting.