Smokeable sausage casing based on polyamide
AssigneeViskoTeepak Belgium NV
InventorTor Johansson
Life of this patent
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Abstract
The invention relates to smokable sausage casings which are based on polyamide and polymers containing polyamide blocks and polyether blocks. The said smokable, heat-shrinkable tubular sausage casings are particularly suitable for the manufacture of cooked meat sausages, scalded-emulsion sausages, cooked or rapidly fermented sausages containing fat and smoked ham. The smokable sausage casing comprises 15-85 wt % of a polyamide (i) or a combination of polyamides (i) and 15-85 wt % of a polymer (ii) containing polyamide blocks and polyether blocks or a combination of polymers (ii).
Claims13
A smokable biaxially stretch oriented sausage casing, comprising:
- 15-85 wt % of a polyamide (i) selected from the group consisting of:
- PA6=H—(NH—(CH2)5—CO)n—OH,
- PA6/66=H—(NH—(CH2)5—CO)—OH+H—(NH—(CH2)6—HN—CO—(CH2)4—CO)—OH (in random order),
- and a combination of polyamides PA6 and PA6/66;
- 15-85 wt % of a hydrophilic polymer (ii) containing polyamide PA6 blocks and polyethyleneglycol (PEG) blocks or a combination of hydrophilic polymers (ii),
- wherein the number-average molar mass of the polyamide PA6 blocks is between 300 and 15,000 and the mass of the polyethyleneglycol (PEG) blocks is between 100 and 6,000, and the ratio of PA6 blocks and PEG blocks in the hydrophilic polymer (ii) is in the range from 1/1 to 3/1,
- wherein the casing has a moisture vapour transmission rate (MVTR) of more than 400 g/m2/24 hours when measured using the ASTM E96 BW method, and the thickness of the casing is 15-45 μm, and
- wherein the casing comprises one layer.
A method for the manufacture of cooked meat sausages, scalded-emulsion sausages, cooked or fermented sausages containing fat and smoked ham in smokable sausage casings wherein sausage mix or ham is stuffed into a smokable, biaxially stretch oriented casing and the sausages or ham are smoked and cooked, wherein the casing comprises:
- 15-85 wt % of a polyamide (i) selected from the group consisting of:
- PA6=H—(NH—(CH2)5—CO)n—OH,
- PA6/66=H—(NH—(CH2)5—CO)—OH+H—(NH—(CH2)6—HN—CO—(CH2)4—CO)—OH (in random order),
- and a combination of polyamides PA6 and PA6/66;
- 15-85 wt % of a hydrophilic polymer (ii) containing polyamide PA6 blocks and polyethyleneglycol (PEG) blocks or a combination of hydrophilic polymers (ii),
- wherein the number-average molar mass of the polyamide PA6 blocks is between 300 and 15,000 and the mass of the polyethyleneglycol (PEG) blocks is between 100 and 6,000, and the ratio of PA6 blocks and PEG blocks in the hydrophilic polymer (ii) is in the range from 1/1 to 3/1,
- wherein the casing has a moisture vapour transmission rate (MVTR) of more than 400 g/m2/24 hours when measured using the ASTM E96 BW method, and the thickness of the casing is 15-45 μm, and
- wherein the casing comprises one layer.
A smokable biaxially stretch oriented sausage casing, comprising:
- 15-85 wt % of a polyamide (i) consisting of PA6/66=H—(NH—(CH2)5—CO)—OH+H—(NH—(CH2)6—HN—CO—(CH2)4—CO)—OH (in random order);
- and
- 15-85 wt % of a hydrophilic polymer (ii) containing polyamide PA6 blocks and polyethyleneglycol (PEG) blocks or a combination of hydrophilic polymers (ii),
- wherein
- the number-average molar mass of the polyamide PA6 blocks is between 300 and 15,000,
- the mass of the polyethyleneglycol (PEG) blocks is between 100 and 6,000, and the ratio of PA6 blocks and PEG blocks in the hydrophilic polymer (ii) is in the range from 1/1 to 3/1, and
- wherein
- the casing has a moisture vapour transmission rate (MVTR) of more than 400 g/m2/24 hours when measured using the ASTM E96 BW method, and the thickness of the casing is 15-45 μm.
Dependencies are inferred from the claim text.