Edge coatings for tapes

Patent metadata

Field	Value
Publication number	US-2016160091-A1
Application number	US-201614993706-A
Country	US
Kind code	A1
Filing date	Jan 12, 2016
Priority date	May 6, 2008
Publication date	Jun 9, 2016
Grant date	—

Abstract

Disclosed is a tape including a substrate having an adhesive layer applied thereto and an edge coating. The substrate and the adhesive together provide at least one masking edge where the edge coating is applied. The edge coating includes a flocculating agent. The edge coating provides the tape with enhanced masking ability.

First claim

What is claimed is:

1 . A tape comprising:
a substrate having an adhesive layer applied thereto, the substrate and the adhesive together providing at least one masking edge; and an edge coating applied to the at least one masking edge, the edge coating including a flocculating agent.

2 . The tape of claim 1 wherein the edge coating is a powder.

3 . The tape of claim 2 wherein the particle size of the powder is about 100 μm or less.

4 . The tape of claim 1 wherein the edge coating prevents or reduces the tendency for an applied paint or coating from being absorbed into the substrate or from penetrating the interface between the adhesive layer and an adherend.

5 . The tape of claim 1 wherein the flocculating agent is a polyvalent metal salt or an ionic polymer.

6 . The tape of claim 5 wherein the edge coating is applied as an aqueous solution.

7 . The tape of claim 6 wherein the solution has a concentration of at least about 40% of the agent.

8 . The tape of claim 1 wherein the edge coating is applied to both edges of the tape.

9 . The tape of claim 1 wherein the substrate is paper.

10 . The tape of claim 1 wherein the substrate is foil.

11 . The tape of claim 20 wherein the flocculant is selected from the group consisting of aluminum chlorohydrate, aluminum hydroxide, aluminum sulfate, ferrous sulfate, ferrous sulfide, ferric sulfide, ferric hydroxide, calcium sulfate, calcium carbonate, calcium hydroxide and Fe 2 (SO 4 ) 3 Fe Cl 3 .

12 . The tape of claim 6 wherein the aqueous solution has a concentration of at least 4% flocculating agent.

13 . The tape of claim 1 where the edge coating has a dry coat weight of about 0.1 to about 50 g/m 2 .

Assignees

• Tynan Jr John K
• Lewandowski Mark A
• Chrzanowski Deborah A
• Rhude Paul E
• Intertape Polymer Corp

Inventors

• Tynan Jr John K
• Lewandowski Mark A
• Chrzanowski Deborah A
• Rhude Paul E

Classifications

• Y10T428/2891

  including addition polymer from alpha-beta unsaturated carboxylic acid [e.g., acrylic acid, methacrylic acid, etc.] Or derivative thereof · CPC title

• C09J2400/283

  in the substrate · CPC title

• C09J7/21

  Paper; Textile fabrics · CPC title

• Y10T428/14

  Layer or component removable to expose adhesive · CPC title

• B32B15/08

  of synthetic resin · CPC title