Abstract: This invention relates to curable epoxy-based compositions for use in the field of microelectronics, such as those having an epoxy compound which has two or more epoxy groups per molecule, optionally a polythiol compound which has two or more thiol groups per molecule, a latent hardener, and at least one solid organic acid which is substantially insoluble in a mixture of the foregoing components at room temperature. The solid organic acid may be selected from the group consisting of: aliphatic, cycloaliphatic and aromatic carboxylic acids and derivatives thereof, aliphatic, cycloaliphatic, and aromatic quinones and derivatives thereof, phenols and derivatives thereof and enolisable aliphatic, cycloaliphatic and aromatic compounds and derivatives thereof. The solid organic acid should have a pKa of less than or equal to about 12.0, desirably less than or equal to about 10, and often less than or equal to about 9.0, such as less than or equal to about 7.5.

Abstract: This invention relates to curable epoxy-based compositions for use in the field of microelectronics, such as those having an epoxy compound which has two or more epoxy groups per molecule, a polythiol compound which has two or more thiol groups per molecule, a latent hardener, and at least one solid organic acid which is substantially insoluble in a mixture of the foregoing components at room temperature. The solid organic acid may be selected from the group consisting of: aliphatic, cycloaliphatic and aromatic carboxylic acids and derivatives thereof, aliphatic, cycloaliphatic, and aromatic quinones and derivatives thereof, phenols and derivatives thereof and enolisable aliphatic, cycloaliphatic and aromatic compounds and derivatives thereof. The solid organic acid should have a pKa of less than or equal to about 12.0, desirably less than or equal to about 10, and often less than or equal to 9.0, such as less than or equal to about 7.5.

Abstract: A surgical gown fabricated of a light weight, woven polyester, is provided with side ties which permit it to be secured to a wearer in accordance with accepted sterile techniques. These ties are joined by a pass card having detachable locking means which engage the side ties and maintain them properly positioned when the gown is folded into a compact package and during the procedure of putting the gown on a wearer. When the gown is preliminarily secured to the wearer, by back ties, the wearer disengages one side tie from the pass card. An unsterile assistant then wraps the gown around the back of the wearer. The wearer then frees the other side tie from the pass card and joins the two side ties to secure the gown on his person. The configuration of the terminal ends of the side ties and the features of the pass card locking means facilitate the use of pass cards with reusable surgical gowns fabricated from woven fabrics.